The joining of dissimilar Aluminum Alloy and Copper aluminum plates of 5mm thickness was carried out by technique. Optimum process parameters were obtained for joints using statistical approach. Five different tool designs have been employed to an alyse the influence of rotation speed and traverse speed over the micro structural and tensile properties. In FSW technique, the process of welding of the base material, well below its melting temperature, has opened up new trends in producing efficient dissimilar joints. Effect of welding speed on microstructures, hardness distribution and tensile properties of the welded joints were investigated. By varying the process parameters, defect free and high efficiency welded joints were produced. The ratio between tool shoulder diameter and pin diameter is the most dominant factor. From micro structural analysis it is evident that the material placed on the advancing side dominates the nugget region. The hardness in the HAZ of 6061 was found to be minimum, where the welded joints failed during the tensile studies. M. S. Amarnath Reddy | Mr. J. Sree Hari | Mr. K. Sai Kiran "Optimization of Process Parameters in MIG Welding of Two Dissimilar Materials" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18749.pdf
This document provides an introduction to friction stir welding (FSW), including:
- FSW was invented in 1991 as a solid state welding process that avoids problems of conventional welding.
- It works by plunging a rotating cylindrical tool with a profiled pin into the material to be joined, generating frictional heat below the melting point.
- The document outlines the basic FSW setup, materials used, stress-strain graph, advantages over fusion welding, and applications in aerospace, automotive, and shipbuilding. It also discusses future developments and concludes that FSW is an important alternative to fusion welding.
FRICTION STIR WELDING OF ALUMINIUM ALLOYS - A REVIEWIAEME Publication
This welding is a novel process used to join metallic alloys. Friction stir welding is in vogue in aerospace, automotive and other industrial establishments for connecting alloys like aluminum, magnesium and copper. Rotational speed, welding speed and the angle of attack are important in the process of FSW. They analyze the weld quality. FSW produces stronger weld joint then the original material in selected parameters. FSW is a solid-state process, where metal is not melted uses a cylindrical shouldered tool with a profiled pin rotated and gradually plunged into the weld joint between two metal parts of plate or sheet that are to be welded together.
Friction Stir Welding of Magnesium Alloys - A Reviewmsejjournal
The selection of proper material for each application is a critical part in every manufacturing industry.
In the field of aerospace and automobile the major requirement is light weight yet strong material which
can possess every aspect of design parameters. Magnesium alloy one of the major raw material used in
these industries due to its light weight, good thermal conductivity etc. Also Friction stir welding is the
joining process that is being used in these industries as it is a solid state joining process. This paper
gives a detailed review about Friction Stir welding of Mg alloys. The review period is considered from
2009 to 2015.A detailed review about Friction stir welding of Mg alloys has not been done before in this
manner. This review work may be a ready reference for subsequent researchers.
This document summarizes recent developments in friction stir welding of aluminum alloys. Friction stir welding is a solid-state welding technique developed for joining difficult-to-weld aluminum alloys. It has been implemented commercially in industries like shipbuilding, train manufacturing, and aviation. The document reviews the microstructures and mechanical properties of friction stir welded aluminum alloys and how weld parameters influence these properties. It also discusses developments in friction stir welding tool designs and applications of the technique beyond aluminum alloys.
A review paper on friction stir weldingNaga Muruga
This document summarizes 15 journal articles on friction stir welding (FSW). It provides details on the materials studied, parameters analyzed, and key findings for each article. The articles covered new FSW tool designs, mechanical properties of joints, process monitoring techniques, microstructure analysis, and modeling of residual stress and material flow. Studying these articles helped provide an overview of recent developments and improvements in FSW, as well as the most common parameters analyzed to optimize the process.
Effect of tool offset and tilt angle on weld strength of butt joint friction ...Alexander Decker
This document discusses an experiment investigating the effect of tool offset and tilt angle on the weld strength of friction stir welded butt joints between AA2024 aluminum alloy and copper. Specimens were welded using a tool with 2 degree tilt and various pin offsets. Tensile testing showed specimens welded with 1 mm pin offset and 2 degree tilt had the highest strength. Microstructure analysis revealed intercalated aluminum and copper pieces in the weld nugget, as well as copper hooks providing strength. Welding with tilt improved strength by removing voids compared to zero tilt.
Friction stir welding is a solid state joining process that was invented in 1991. It involves a non-consumable rotating tool that is plunged into metal materials to join them. Frictional heat generated by the tool plasticizes the materials without melting them. As the tool traverses along the weld line, it forges the plasticized materials behind the tool to form a joint. Compared to fusion welding, friction stir welding produces joints with lower heat input and narrow heat affected zones. It can weld a variety of materials, including aluminum alloys, copper alloys, magnesium alloys, and plastics.
This document provides an introduction to friction stir welding (FSW), including:
- FSW was invented in 1991 as a solid state welding process that avoids problems of conventional welding.
- It works by plunging a rotating cylindrical tool with a profiled pin into the material to be joined, generating frictional heat below the melting point.
- The document outlines the basic FSW setup, materials used, stress-strain graph, advantages over fusion welding, and applications in aerospace, automotive, and shipbuilding. It also discusses future developments and concludes that FSW is an important alternative to fusion welding.
FRICTION STIR WELDING OF ALUMINIUM ALLOYS - A REVIEWIAEME Publication
This welding is a novel process used to join metallic alloys. Friction stir welding is in vogue in aerospace, automotive and other industrial establishments for connecting alloys like aluminum, magnesium and copper. Rotational speed, welding speed and the angle of attack are important in the process of FSW. They analyze the weld quality. FSW produces stronger weld joint then the original material in selected parameters. FSW is a solid-state process, where metal is not melted uses a cylindrical shouldered tool with a profiled pin rotated and gradually plunged into the weld joint between two metal parts of plate or sheet that are to be welded together.
Friction Stir Welding of Magnesium Alloys - A Reviewmsejjournal
The selection of proper material for each application is a critical part in every manufacturing industry.
In the field of aerospace and automobile the major requirement is light weight yet strong material which
can possess every aspect of design parameters. Magnesium alloy one of the major raw material used in
these industries due to its light weight, good thermal conductivity etc. Also Friction stir welding is the
joining process that is being used in these industries as it is a solid state joining process. This paper
gives a detailed review about Friction Stir welding of Mg alloys. The review period is considered from
2009 to 2015.A detailed review about Friction stir welding of Mg alloys has not been done before in this
manner. This review work may be a ready reference for subsequent researchers.
This document summarizes recent developments in friction stir welding of aluminum alloys. Friction stir welding is a solid-state welding technique developed for joining difficult-to-weld aluminum alloys. It has been implemented commercially in industries like shipbuilding, train manufacturing, and aviation. The document reviews the microstructures and mechanical properties of friction stir welded aluminum alloys and how weld parameters influence these properties. It also discusses developments in friction stir welding tool designs and applications of the technique beyond aluminum alloys.
A review paper on friction stir weldingNaga Muruga
This document summarizes 15 journal articles on friction stir welding (FSW). It provides details on the materials studied, parameters analyzed, and key findings for each article. The articles covered new FSW tool designs, mechanical properties of joints, process monitoring techniques, microstructure analysis, and modeling of residual stress and material flow. Studying these articles helped provide an overview of recent developments and improvements in FSW, as well as the most common parameters analyzed to optimize the process.
Effect of tool offset and tilt angle on weld strength of butt joint friction ...Alexander Decker
This document discusses an experiment investigating the effect of tool offset and tilt angle on the weld strength of friction stir welded butt joints between AA2024 aluminum alloy and copper. Specimens were welded using a tool with 2 degree tilt and various pin offsets. Tensile testing showed specimens welded with 1 mm pin offset and 2 degree tilt had the highest strength. Microstructure analysis revealed intercalated aluminum and copper pieces in the weld nugget, as well as copper hooks providing strength. Welding with tilt improved strength by removing voids compared to zero tilt.
Friction stir welding is a solid state joining process that was invented in 1991. It involves a non-consumable rotating tool that is plunged into metal materials to join them. Frictional heat generated by the tool plasticizes the materials without melting them. As the tool traverses along the weld line, it forges the plasticized materials behind the tool to form a joint. Compared to fusion welding, friction stir welding produces joints with lower heat input and narrow heat affected zones. It can weld a variety of materials, including aluminum alloys, copper alloys, magnesium alloys, and plastics.
This document summarizes a research project that studied the tensile strength of spot welds between mild steel and stainless steel (304). Samples of each material were spot welded together using varying welding times (1-4 seconds) and pressures (70-75 PSI). The spot welded samples were then subjected to tensile shear and tensile peel tests using a universal testing machine. Microscope analysis was also performed on the fracture surfaces. The results showed that increasing welding time and pressure generally improved tensile strength up to an optimum point, due to a larger weld nugget size. The optimum parameters for highest tensile shear strength were found to be 4 seconds welding time and 75 PSI pressure.
Investigation on effect of welding current on welding speed and hardness of h...eSAT Journals
1) The document investigates the effect of welding current on welding speed and hardness of the heat affected zone (HAZ) and weld metal of mild steel.
2) Testing was conducted on mild steel specimens welded with varying current from 80-100 amps using MMAW. Hardness was measured in the parent metal, HAZ and weld metal.
3) Results showed that as welding current increased, welding time decreased and welding speed increased due to a higher electrode melting rate. Hardness of the HAZ and weld metal decreased with increasing current due to higher heat input.
Friction Stir welding combine the action of frictional heating and mechanical deformation due to a rotating tool. The advantages of Friction Stir welding over arc welding is as follows:-
1) High quality weld can be achieved
2) Absence of solidification cracking
3) Lower apparent energy input
4) Less distortion and residual stress
Friction stir welding is a solid state joining process that uses a non-consumable tool to join two touching workpieces without melting. The tool has a shouldered pin that is rotated as it travels along the joint line. Friction between the pin and workpieces generates heat, causing the metals to soften without melting. Benefits include excellent mechanical properties, reduced defects compared to fusion welding, and ability to join difficult-to-weld metals and aluminum alloys. Applications include automotive, aerospace, rail, shipbuilding, and electronics.
Optimization of Process Parameters of Tungsten Inert Gas Welding by Taguchi M...ijsrd.com
Tungsten Inert Gas welding (TIG) is one of the most important joining technologies in welding-related fabrication. High quality weld joints without spattering and slags qualify this welding technology for the major part of metals. As the filler-metal supply is separated from the arc, the molten pool can be controlled in the best way possible an advantage which ensures the quality of the execution of the weld but entails a relatively low deposition rate and welding speed. When manufacturing consumer products where appearance is of importance; then the choice has to be TIG welding. Jobs that call for code requirements such as nuclear work, piping, and high profile consumer goods often require at least the first weld in the pipe joint to be TIG welding for an effective bond. In some cases all the passes on a multi-pass pipe weld may have to be TIG welding, if demand has high quality and code requirements.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
This document summarizes research on using the Taguchi method to optimize metal inert gas (MIG) hardfacing welding parameters. The Taguchi method uses orthogonal arrays to minimize the number of experimental runs needed. In the study, different welding parameters including voltage, wire feed rate, nozzle-to-plate distance, welding speed, and gas flow rate are considered as control factors. An L25 orthogonal array is used to conduct the experiments according to the design matrix. Hardness and impact toughness tests are performed on the hardfaced samples, showing improvements in the properties. Grey relational analysis and desirability functions are also discussed as part of the Taguchi method optimization approach.
Optimization of Process Parameters on Tig Welding to Enhance Mechanical Prope...ijtsrd
Tungsten Inert Gas TIG welding is widely used for weld the thin metal. Alloying metal is also welded by this process. Appearance and quality TIG weld is very superior as compare to other welding process. Melting the work piece and filler rod result in formation of smoke and gases. Helium and Argon are non reactive gases by this property it is used as a shielding gas. Most commonly mixture of Argon and Helium are favored to use for enhanced welding quality because they do not react with each other .Argon and Helium gases protect the welding area from outer environment and helps to maintain a stable arc due to low ionization potential. Aluminum is light in weight and for excellent performance it is used in aerospace industry, aviation, marine industry, automobile, defence and others. TIG welding parameters such as welding current, gas flow rate and welding voltage are taken into account which influences the tensile strength, Hardness and Toughness of aluminum weld joint. Welding parameters are controlled with electronic control units. AC power supply is prefer to used for aluminium as compare to DC power supply because of its low melting point aluminium melt at low temperature Ravinder Kumar | Dr. Dinesh Kumar ""Optimization of Process Parameters on Tig Welding to Enhance Mechanical Properties of AA-6351 T6 Alloy"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23831.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23831/optimization-of-process-parameters-on-tig-welding-to-enhance-mechanical-properties-of-aa-6351-t6-alloy/ravinder-kumar
Friction stir welding process parameters forsabry said
1) Friction stir welding is a solid-state welding process that joins materials without melting them. In FSW, a non-consumable tool is used to generate frictional heat and plasticize the materials being joined.
2) The document focuses on evaluating the mechanical properties and predicting the process parameters of friction stir welding for joining dissimilar aluminum alloys, specifically a 6xxx alloy and 7xxx alloy.
3) Key factors that determine weld quality are welding parameters like rotational speed and welding speed, as well as tool geometry. Proper selection of parameters and tool design can improve weld quality.
Plastic welding is a process that joins thermoplastic materials like polyethylene and polypropylene by heating them until they soften and fuse together. There are different types of plastic welding classified by their heating method, such as hot gas welding, laser welding, hot plate welding, and ultrasonic welding. Plastic welding has advantages like producing strong, air tight welds and being a fast and clean process, but also has disadvantages such as the weld being permanent and some processes being relatively slow. Plastic welding has applications in automotive parts, sensors, and other areas.
The document discusses various welding processes used by a company including arc welding, metal inert gas welding, TIG welding, stud welding, and spot welding. It provides details on each process and how they work. Spot welding is described as using two electrodes to concentrate current and heat the metals to the melting point, forming a weld. The document also covers resistance welding theory, timing controls for weld time and sequence, electrode force, and proper installation of spot welding machines.
Influence of Process Parameters on AA7075 in TIG WeldingIJARTES
Influence of Process Parameters on AA7075 in
TIG Welding
Aluminium Alloy is containing high strength,
light weight and good Corrosion resistance. Then Gas
tungsten arc welding (GTAW) is an important joining
method for high strength aluminium alloys using
applications in transport applications like that marine,
aerospace, bicycle components, marine Engine components,
External throw away tanks for military aircrafts and other
industries. Gas tungsten arc welding have been used to
investigate the Weldability of high strength aluminium
alloys. Some important GTAW process parameters and their
effects on weld quality are discussed. Mechanical properties
of welds such as tensile strength and hardness properties are
discussed. The aim of the report is to investigation in GTAW
of high strength aluminium alloy 7075 and to provide a basis
for follow-on research.
Study the Effect of Welding Parameters during TIG Welding of Aluminum Plate a...Dr. Amarjeet Singh
Aluminium has very unique properties of light
weight and corrosion resistance and due to this it becomes
very interesting metal in the field of engineering. Mainly this
paper deals with effect and optimization of certain range of
values of process parameters during TIG welding of
aluminium alloy 7075.
In the first cycle of experiment the effect of values
(in wide range) of gas flow rate and welding current during
TIG welding of Aluminium alloy 7075 has been found out on
its mechanical properties such as ultimate tensile strength and
hardness. Visual inspection and dye penetrate test also has
been performed for every sample of welding.
From the results for ultimate tensile strength obtained in first
cycle of experiment, a try has been made to optimize process
parameters in second cycle of experiment by narrowing the
range of values of gas flow rate and welding current. Finally
the near optimal values of gas flow rate and welding current
has been found to get maximum UTS.
The effect of welding heat input and welding speed on microstructure of chrom...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This document provides an introduction and overview of a thesis investigating the use of Cold Metal Transfer (CMT) cladding to produce wear and corrosion resistant coatings. The thesis will study and optimize the operating parameters of CMT cladding for specific base and filler materials. CMT welding is considered a novel joining method that is process stable, reproducible, and cost-effective. The document outlines the goals and scope of the thesis research, which will collect experiment data from Centria University to analyze CMT cladding.
Heat Generation Performance of a Homemade Friction Stir Welding Tool Irfan Hilmy
(1) The document discusses heat generation during friction stir welding using a homemade friction stir welding tool. An infrared video camera was used to capture the heat generation between the tool and workpiece, showing temperatures ranging from 380-450°C.
(2) A numerical model was developed to simulate the heat generation during friction stir welding. The model found that parameters like normal force, welding speed, spindle speed, and friction coefficient can be adjusted to control the heat generation.
(3) The research concluded that a homemade friction stir welding tool was successfully designed and used for friction stir welding, with only minor defects observed. Heat generation maps from the numerical model matched well with experimental results.
At present scenario, INCONEL alloy 625 becomes widely used material in aero industry due to its High
tensile, creep, and rupture strength, outstanding fatigue and thermal-fatigue strength, oxidation resistance, and
excellent weld ability properties. In present work, the plates of 50mm×50mm×3mm are modelled and assembled
for v-butt joint using solid works. This model is imported in the FEA software (ANSYS) to carry out the transient
thermal analysis. The analysis is carried out with different combinations of welding parameters such as voltage,
current, velocity, speed and melting efficiency. From the analysis result, the temperature distribution at various
locations around the weld bead is evaluated. From structural analysis result, the distortion of work piece due to the
thermal effect is analysed.
Investigation of Effect of Process Parameters on Maximum Temperature during F...IJSRD
In case of friction stir welding, the maximum temperature along the weld line within appropriate range at tool workpiece interface is responsible for quality of welded joint. Through this paper, an attempt is made to establish a relationship between the input process parameters and the maximum temperature along the weld line during friction stir welding of aluminium alloy AA-7075. The design of pre-experimental simulation has been performed in accordance with full factorial technique. The simulation of friction stir welding has been performed by varying input parameters, tool rotational speed and welding speed. The analysis of variance (ANOVA) is used to investigate the effect of input parameters on maximum temperature during friction stir welding. A correlation was established between input parameters and maximum temperature by multiple regression lines. This study indicates that the tool rotational speed is the main input parameter that has high statistical influence on maximum temperature along the weld line during friction stir welding of aluminium alloy AA-7075.
Experimental Investigation of Friction Stir Welding Of Aluminum Aa6061 Alloy ...iosrjce
The combination of wrought aluminum-magnesium-silicon alloy confirming to aluminum AA6061
alloy widely accepted because of light weight fabrication structures, high strength to weight ratio and good
corrosion resistance. Friction Stir Welding(FSW) process is an emerging solid state joining process in which
the material that is being welded does not melt and recast when compared to fusion welding process that are
routinely used for joining structural aluminum alloys. In this FSW process a non consumable tool is used to
generate frictional heat in the abutting surfaces. Experiments for surface roughness, Rockwell hardness and
tensile tests are carried out and reported in this paper. The base material used for friction stir welding is
aluminum AA 6061 alloy. Surface roughness values decreases with the increase in speed of the tool and also
there exists an optimum speed to have the good surface finish. Hardness increases with decrease in speed of the
tool but increases after reaching a certain value. Tensile strength increases with the increase in speed of the
tool and also there exists an optimum values for particular feed of the tool.
Friction stir welding of aluminium 5086 alloyseSAT Journals
Abstract Friction Stir welding (FSW) is a solid state attachment method used for welding of metals of same and different metals. This process of friction stir welding (FSW) is widely using for the reason it can produces sound welds and doesn't have common issues like solidification and liquefaction cracking connected to the fusion techniques. The Friction stir welding of Al 5086 alloys had been commercialized and up to date interest is targeted on change of integrity with different metals. Thus on commercialize this method, analysis studies are required to characterize. particularly, FSW has impressed researchers to aim modification of integrity different metals like aluminum 5086 that differ in properties and sound welds with none or restricted inter metallic bonding of components has been done. In this paper we have to make a research on the current analysis state of FSW between aluminum 5086 with attention on the resulting welding and tensile strength, microstructure, elongation and the tools are used to produce the welds and also an insight into future analysis during this process of study the project of friction welding. By this process in our project we got an idea of going to maintain the rotational speed (rpm) 450 to 1400 and also by changing welding rpm (speed). This friction stir welding is used in nasa for joining of two totally different or same types of materials. Keywords: Friction stir welding, Tool, Welding parameters, and Mechanical properties etc…
This document provides information on various welding processes including resistance welding, spot welding, seam welding, projection welding, percussion welding, thermit welding, friction welding, explosive welding, ultrasonic welding, and diffusion welding. It explains the basic principles, equipment, and applications of each process. Resistance welding generates heat through resistance to electric current and is commonly used for sheet metal. Spot welding uses electrodes to create overlapping welds. Seam welding produces a continuous air-tight seam.
Research Inventy : International Journal of Engineering and Scienceinventy
esearch Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
This document summarizes a research project that studied the tensile strength of spot welds between mild steel and stainless steel (304). Samples of each material were spot welded together using varying welding times (1-4 seconds) and pressures (70-75 PSI). The spot welded samples were then subjected to tensile shear and tensile peel tests using a universal testing machine. Microscope analysis was also performed on the fracture surfaces. The results showed that increasing welding time and pressure generally improved tensile strength up to an optimum point, due to a larger weld nugget size. The optimum parameters for highest tensile shear strength were found to be 4 seconds welding time and 75 PSI pressure.
Investigation on effect of welding current on welding speed and hardness of h...eSAT Journals
1) The document investigates the effect of welding current on welding speed and hardness of the heat affected zone (HAZ) and weld metal of mild steel.
2) Testing was conducted on mild steel specimens welded with varying current from 80-100 amps using MMAW. Hardness was measured in the parent metal, HAZ and weld metal.
3) Results showed that as welding current increased, welding time decreased and welding speed increased due to a higher electrode melting rate. Hardness of the HAZ and weld metal decreased with increasing current due to higher heat input.
Friction Stir welding combine the action of frictional heating and mechanical deformation due to a rotating tool. The advantages of Friction Stir welding over arc welding is as follows:-
1) High quality weld can be achieved
2) Absence of solidification cracking
3) Lower apparent energy input
4) Less distortion and residual stress
Friction stir welding is a solid state joining process that uses a non-consumable tool to join two touching workpieces without melting. The tool has a shouldered pin that is rotated as it travels along the joint line. Friction between the pin and workpieces generates heat, causing the metals to soften without melting. Benefits include excellent mechanical properties, reduced defects compared to fusion welding, and ability to join difficult-to-weld metals and aluminum alloys. Applications include automotive, aerospace, rail, shipbuilding, and electronics.
Optimization of Process Parameters of Tungsten Inert Gas Welding by Taguchi M...ijsrd.com
Tungsten Inert Gas welding (TIG) is one of the most important joining technologies in welding-related fabrication. High quality weld joints without spattering and slags qualify this welding technology for the major part of metals. As the filler-metal supply is separated from the arc, the molten pool can be controlled in the best way possible an advantage which ensures the quality of the execution of the weld but entails a relatively low deposition rate and welding speed. When manufacturing consumer products where appearance is of importance; then the choice has to be TIG welding. Jobs that call for code requirements such as nuclear work, piping, and high profile consumer goods often require at least the first weld in the pipe joint to be TIG welding for an effective bond. In some cases all the passes on a multi-pass pipe weld may have to be TIG welding, if demand has high quality and code requirements.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
This document summarizes research on using the Taguchi method to optimize metal inert gas (MIG) hardfacing welding parameters. The Taguchi method uses orthogonal arrays to minimize the number of experimental runs needed. In the study, different welding parameters including voltage, wire feed rate, nozzle-to-plate distance, welding speed, and gas flow rate are considered as control factors. An L25 orthogonal array is used to conduct the experiments according to the design matrix. Hardness and impact toughness tests are performed on the hardfaced samples, showing improvements in the properties. Grey relational analysis and desirability functions are also discussed as part of the Taguchi method optimization approach.
Optimization of Process Parameters on Tig Welding to Enhance Mechanical Prope...ijtsrd
Tungsten Inert Gas TIG welding is widely used for weld the thin metal. Alloying metal is also welded by this process. Appearance and quality TIG weld is very superior as compare to other welding process. Melting the work piece and filler rod result in formation of smoke and gases. Helium and Argon are non reactive gases by this property it is used as a shielding gas. Most commonly mixture of Argon and Helium are favored to use for enhanced welding quality because they do not react with each other .Argon and Helium gases protect the welding area from outer environment and helps to maintain a stable arc due to low ionization potential. Aluminum is light in weight and for excellent performance it is used in aerospace industry, aviation, marine industry, automobile, defence and others. TIG welding parameters such as welding current, gas flow rate and welding voltage are taken into account which influences the tensile strength, Hardness and Toughness of aluminum weld joint. Welding parameters are controlled with electronic control units. AC power supply is prefer to used for aluminium as compare to DC power supply because of its low melting point aluminium melt at low temperature Ravinder Kumar | Dr. Dinesh Kumar ""Optimization of Process Parameters on Tig Welding to Enhance Mechanical Properties of AA-6351 T6 Alloy"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23831.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23831/optimization-of-process-parameters-on-tig-welding-to-enhance-mechanical-properties-of-aa-6351-t6-alloy/ravinder-kumar
Friction stir welding process parameters forsabry said
1) Friction stir welding is a solid-state welding process that joins materials without melting them. In FSW, a non-consumable tool is used to generate frictional heat and plasticize the materials being joined.
2) The document focuses on evaluating the mechanical properties and predicting the process parameters of friction stir welding for joining dissimilar aluminum alloys, specifically a 6xxx alloy and 7xxx alloy.
3) Key factors that determine weld quality are welding parameters like rotational speed and welding speed, as well as tool geometry. Proper selection of parameters and tool design can improve weld quality.
Plastic welding is a process that joins thermoplastic materials like polyethylene and polypropylene by heating them until they soften and fuse together. There are different types of plastic welding classified by their heating method, such as hot gas welding, laser welding, hot plate welding, and ultrasonic welding. Plastic welding has advantages like producing strong, air tight welds and being a fast and clean process, but also has disadvantages such as the weld being permanent and some processes being relatively slow. Plastic welding has applications in automotive parts, sensors, and other areas.
The document discusses various welding processes used by a company including arc welding, metal inert gas welding, TIG welding, stud welding, and spot welding. It provides details on each process and how they work. Spot welding is described as using two electrodes to concentrate current and heat the metals to the melting point, forming a weld. The document also covers resistance welding theory, timing controls for weld time and sequence, electrode force, and proper installation of spot welding machines.
Influence of Process Parameters on AA7075 in TIG WeldingIJARTES
Influence of Process Parameters on AA7075 in
TIG Welding
Aluminium Alloy is containing high strength,
light weight and good Corrosion resistance. Then Gas
tungsten arc welding (GTAW) is an important joining
method for high strength aluminium alloys using
applications in transport applications like that marine,
aerospace, bicycle components, marine Engine components,
External throw away tanks for military aircrafts and other
industries. Gas tungsten arc welding have been used to
investigate the Weldability of high strength aluminium
alloys. Some important GTAW process parameters and their
effects on weld quality are discussed. Mechanical properties
of welds such as tensile strength and hardness properties are
discussed. The aim of the report is to investigation in GTAW
of high strength aluminium alloy 7075 and to provide a basis
for follow-on research.
Study the Effect of Welding Parameters during TIG Welding of Aluminum Plate a...Dr. Amarjeet Singh
Aluminium has very unique properties of light
weight and corrosion resistance and due to this it becomes
very interesting metal in the field of engineering. Mainly this
paper deals with effect and optimization of certain range of
values of process parameters during TIG welding of
aluminium alloy 7075.
In the first cycle of experiment the effect of values
(in wide range) of gas flow rate and welding current during
TIG welding of Aluminium alloy 7075 has been found out on
its mechanical properties such as ultimate tensile strength and
hardness. Visual inspection and dye penetrate test also has
been performed for every sample of welding.
From the results for ultimate tensile strength obtained in first
cycle of experiment, a try has been made to optimize process
parameters in second cycle of experiment by narrowing the
range of values of gas flow rate and welding current. Finally
the near optimal values of gas flow rate and welding current
has been found to get maximum UTS.
The effect of welding heat input and welding speed on microstructure of chrom...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
This document provides an introduction and overview of a thesis investigating the use of Cold Metal Transfer (CMT) cladding to produce wear and corrosion resistant coatings. The thesis will study and optimize the operating parameters of CMT cladding for specific base and filler materials. CMT welding is considered a novel joining method that is process stable, reproducible, and cost-effective. The document outlines the goals and scope of the thesis research, which will collect experiment data from Centria University to analyze CMT cladding.
Heat Generation Performance of a Homemade Friction Stir Welding Tool Irfan Hilmy
(1) The document discusses heat generation during friction stir welding using a homemade friction stir welding tool. An infrared video camera was used to capture the heat generation between the tool and workpiece, showing temperatures ranging from 380-450°C.
(2) A numerical model was developed to simulate the heat generation during friction stir welding. The model found that parameters like normal force, welding speed, spindle speed, and friction coefficient can be adjusted to control the heat generation.
(3) The research concluded that a homemade friction stir welding tool was successfully designed and used for friction stir welding, with only minor defects observed. Heat generation maps from the numerical model matched well with experimental results.
At present scenario, INCONEL alloy 625 becomes widely used material in aero industry due to its High
tensile, creep, and rupture strength, outstanding fatigue and thermal-fatigue strength, oxidation resistance, and
excellent weld ability properties. In present work, the plates of 50mm×50mm×3mm are modelled and assembled
for v-butt joint using solid works. This model is imported in the FEA software (ANSYS) to carry out the transient
thermal analysis. The analysis is carried out with different combinations of welding parameters such as voltage,
current, velocity, speed and melting efficiency. From the analysis result, the temperature distribution at various
locations around the weld bead is evaluated. From structural analysis result, the distortion of work piece due to the
thermal effect is analysed.
Investigation of Effect of Process Parameters on Maximum Temperature during F...IJSRD
In case of friction stir welding, the maximum temperature along the weld line within appropriate range at tool workpiece interface is responsible for quality of welded joint. Through this paper, an attempt is made to establish a relationship between the input process parameters and the maximum temperature along the weld line during friction stir welding of aluminium alloy AA-7075. The design of pre-experimental simulation has been performed in accordance with full factorial technique. The simulation of friction stir welding has been performed by varying input parameters, tool rotational speed and welding speed. The analysis of variance (ANOVA) is used to investigate the effect of input parameters on maximum temperature during friction stir welding. A correlation was established between input parameters and maximum temperature by multiple regression lines. This study indicates that the tool rotational speed is the main input parameter that has high statistical influence on maximum temperature along the weld line during friction stir welding of aluminium alloy AA-7075.
Experimental Investigation of Friction Stir Welding Of Aluminum Aa6061 Alloy ...iosrjce
The combination of wrought aluminum-magnesium-silicon alloy confirming to aluminum AA6061
alloy widely accepted because of light weight fabrication structures, high strength to weight ratio and good
corrosion resistance. Friction Stir Welding(FSW) process is an emerging solid state joining process in which
the material that is being welded does not melt and recast when compared to fusion welding process that are
routinely used for joining structural aluminum alloys. In this FSW process a non consumable tool is used to
generate frictional heat in the abutting surfaces. Experiments for surface roughness, Rockwell hardness and
tensile tests are carried out and reported in this paper. The base material used for friction stir welding is
aluminum AA 6061 alloy. Surface roughness values decreases with the increase in speed of the tool and also
there exists an optimum speed to have the good surface finish. Hardness increases with decrease in speed of the
tool but increases after reaching a certain value. Tensile strength increases with the increase in speed of the
tool and also there exists an optimum values for particular feed of the tool.
Friction stir welding of aluminium 5086 alloyseSAT Journals
Abstract Friction Stir welding (FSW) is a solid state attachment method used for welding of metals of same and different metals. This process of friction stir welding (FSW) is widely using for the reason it can produces sound welds and doesn't have common issues like solidification and liquefaction cracking connected to the fusion techniques. The Friction stir welding of Al 5086 alloys had been commercialized and up to date interest is targeted on change of integrity with different metals. Thus on commercialize this method, analysis studies are required to characterize. particularly, FSW has impressed researchers to aim modification of integrity different metals like aluminum 5086 that differ in properties and sound welds with none or restricted inter metallic bonding of components has been done. In this paper we have to make a research on the current analysis state of FSW between aluminum 5086 with attention on the resulting welding and tensile strength, microstructure, elongation and the tools are used to produce the welds and also an insight into future analysis during this process of study the project of friction welding. By this process in our project we got an idea of going to maintain the rotational speed (rpm) 450 to 1400 and also by changing welding rpm (speed). This friction stir welding is used in nasa for joining of two totally different or same types of materials. Keywords: Friction stir welding, Tool, Welding parameters, and Mechanical properties etc…
This document provides information on various welding processes including resistance welding, spot welding, seam welding, projection welding, percussion welding, thermit welding, friction welding, explosive welding, ultrasonic welding, and diffusion welding. It explains the basic principles, equipment, and applications of each process. Resistance welding generates heat through resistance to electric current and is commonly used for sheet metal. Spot welding uses electrodes to create overlapping welds. Seam welding produces a continuous air-tight seam.
Research Inventy : International Journal of Engineering and Scienceinventy
esearch Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
Welding is a process that joins materials by causing coalescence that is accompanied by heating, with or without the application of pressure. There are several types of welding processes including fusion welding, solid state welding, and pressure welding. Some common fusion welding processes discussed are oxyfuel gas welding, shielded metal arc welding, gas tungsten arc welding, gas metal arc welding, and plasma arc welding. Resistance spot welding is also summarized as a common pressure welding process.
Resistance spot welding is a process that joins metal parts using heat generated by resistance to current passing through the workpieces. It is commonly used in automotive and aircraft manufacturing. Key advantages are its speed, ability to join thin sheets, and suitability for automation. However, it requires specialized equipment and skilled operators, and is generally not suitable for thick materials. Electrodes must conduct current efficiently while withstanding heat and pressure. Copper alloys are commonly used but refractory materials may be required for some applications like welding stainless steel.
The document presents a project review of microstructural testing of friction stir welded aluminum alloys 7075 and 5052. Key points:
- The project investigated the microstructure, microhardness, and residual stresses of friction stir welded 7075 and 5052 aluminum alloys.
- Testing included tensile testing, hardness testing, and optical microscopy to analyze the mechanical properties and microstructure of the welded joints.
- Results found the weld nugget zone had lower microhardness than the base material, and that higher tool rotational speeds resulted in lower microhardness values. Tensile testing also showed welded specimens had lower strength than unwelded specimens.
EXPERIMENTAL OPTIMIZATION OF MILD STEEL ON TIG WELDINGIRJET Journal
This document summarizes an experiment on optimizing TIG welding parameters for mild steel. The experiment tested different welding currents and scan speeds to achieve full penetration welds on 5mm mild steel plates without filler material. Activated flux was also used to improve weld depth. Weld bead geometry and tensile strength of the welds were analyzed for different gaps maintained between plates. Maintaining an appropriate gap allowed for full penetration welds with strength similar to the base material.
Research into Properties of Spot Welded Steel Sheetsijtsrd
The contribution deals with parameter optimalization of resistance spot welding for hot dip zinc coated steel sheets. The mechanical properties and metallographic observation of welded joints on galvanized steel sheets were performed. Uncoated sheets from the same material were used for comparison of particular properties. The results showed that welding parameter optimalization is very important for welding of galvanized steel sheets. LuboÅ¡ KaÅ¡c¡k | Denis Cmorej "Research into Properties of Spot Welded Steel Sheets" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29773.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/29773/research-into-properties-of-spot-welded-steel-sheets/lubo%C5%A1-ka%C5%A1c%C3%A1k
The document discusses various welding processes including gas welding, arc welding, MIG welding, and TIG welding. It provides details on the principles, equipment used, advantages and disadvantages of each process. Some key points:
- Welding joins metals through heating and fusion. Common processes are oxy-acetylene gas welding, SMAW, GMAW (MIG), and GTAW (TIG welding).
- Gas welding uses a flame to heat and fuse metals. MIG welding continuously feeds a wire electrode to form the weld. TIG welding uses a non-consumable tungsten electrode and inert gas shield.
- Advantages include strong joints, cost effectiveness, versatility. Dis
This document summarizes Mitchell Smith's undergraduate research project on friction stir welding of similar and dissimilar metal alloys. Smith conducted trial welds of aluminum alloys to understand the friction stir welding process and machine settings. Welds were made of similar aluminum alloys and dissimilar aluminum-copper alloys. Challenges included preventing separation of metal pieces during welding. Further tests are needed to characterize the welds and properties of the welded metals, including microstructural analysis, tensile tests, and impact tests. Continued research on welding nano-reinforced metals could expand applications of friction stir welding in fields like nuclear engineering.
Microstructural and Mechanical Properties Analysis of Plasma ARC Welded 316L ...ijtsrd
The document discusses plasma arc welding of 316L austenitic stainless steel joints without filler material. Plasma arc welding provides several advantages over gas tungsten arc welding including higher welding speeds, lower distortion, and a deeper, narrower weld penetration. The paper analyzes the microstructural and mechanical properties, including weld geometry, grain size, hardness, and tensile strength, of plasma arc welded 316L stainless steel joints made without filler material. The results show that 316L stainless steel can achieve sound weld geometry, good tensile strength, and hardness when welded via the plasma arc welding process without added filler.
The document provides information about welding from a presentation given by Surendra Kumar. It discusses different types of welding including gas welding, arc welding, and their advantages and limitations. Gas welding uses oxygen and acetylene to produce a flame and includes oxy-acetylene welding. Arc welding uses an electric arc between an electrode and base metal to produce heat. Common applications of welding include automobile, aircraft, machinery manufacturing and structural/ship building. In conclusion, welding is widely used in industries to join metals and provides design flexibility at a relatively low cost.
Experimental Analysis to Optimize parameters of Friction Stir Welding of Alum...IJSRD
This document summarizes research on optimizing parameters for friction stir welding (FSW) of aluminum alloys. It first provides background on FSW and discusses how parameters like tool rotation speed, tilt angle, and travel speed affect weld strength. The document then reviews several other studies investigating these parameters. One study found that a tool rotation speed of 900 rpm, travel speed of 75 mm/min, and axial force of 3 kN produced the highest tensile strength for an aluminum alloy. Another identified tilt angle as the most influential parameter for weld strength. Finally, the document describes using the Taguchi method to optimize FSW parameters for aluminum alloy, identifying tilt angle as most significant. It concludes that tool rotation speed, travel
Characterization And Study of Friction Stir Welding of AA6101 Aluminum Alloy IJERA Editor
Friction stir welding (FSW) combines two plates by frictional heating at the interface with the localized plastic
deformation within the material. In friction stir welding heat is generated by the friction between rotating tool
shoulder and the plates to be welded. The heat thus generated results in thermal softening of the material. The
softened material is then forced to flow by the translation of the tool from the front to the back of the pin. There
it cools, consolidates and results in joint formation. In the process, strength of the joint and percentage
elongation varies from the parent material. AA6101 is equivalent to AA 6061 and AA6063. At present AA6101
is used by the electrical industries only. A detailed experimental study has been done on AA 6101 to its utility as
an Aluminum alloy for structural fabrication.
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology
IRJET- To Study the Mechanical Properties of Aluminum Alloy AA-6061 Welded us...IRJET Journal
This document summarizes research on studying the mechanical properties of aluminum alloy AA-6061 welded using TIG welding at different welding currents. The researchers investigated the microstructure and mechanical properties of AA-6061 welded joints at various currents. They found that a welding current of 75A produced welds with the best microstructure and mechanical properties compared to currents of 70A and 80A. Other studies discussed examined the effects of welding parameters like speed, material thickness, and welding technique on the strength and microstructure of aluminum alloy welds.
Electric welding involves joining metals through heat generated by an electric current. There are several types of electric welding processes. Resistance welding uses high current to heat and join metals at points of contact between electrodes and generates heat based on resistance. Arc welding uses an electric arc to melt metals and can use consumable or non-consumable electrodes with shielding gas. Carbon arc welding is a process that produces coalescence of metals by heating them with an arc between a non-consumable carbon electrode and workpiece.
This document summarizes a study that investigated the effects of different quenching media (brine solution, water, diesel oil, and air) on the impact strength of single-vee butt welded mild steel joints. Samples of mild steel were welded using a coated electrode and then heat treated at temperatures from 2000°C to 6000°C before being quenched in the different media. Impact testing found that quenching in brine solution resulted in the lowest average impact strength, while quenching in air produced the highest average impact strength. Overall, the results indicated that air was the best quenching medium for welded mild steel, followed by diesel oil, water, and brine solution, when considering impact
REVIEW ON EFFECT OF HEAT INPUT ON TENSILE STRENGTH OF BUTT WELD JOINT USING M...ijiert bestjournal
This document summarizes a research paper that investigated the effect of heat input on the tensile strength of butt weld joints using MIG welding. The researchers found that increasing heat input affected the microstructure of the base metal and heat affected zone. Tensile strength decreased with higher heat input. Microhardness was observed to increase in the weld pool but decrease in the heat affected zone with greater heat input. Optical microscopy showed smaller dendrite sizes and spacing at low heat input compared to larger dendrites and spacing at high heat input. The extent of grain coarsening in the heat affected zone also increased with higher heat input. In conclusion, welding heat input significantly influences the properties of welded joints.
This document discusses electro slag strip cladding (ESSC), a welding process used to apply corrosion-resistant metal coatings to large surfaces. ESSC works by passing electric current through a continuously fed strip electrode and molten slag pool, generating heat via the Joule effect rather than an electric arc. This allows for higher deposition rates and less mixing compared to submerged arc strip cladding. The document outlines the ESSC process, parameters like current density and voltage, and its applications in industries like petrochemical where corrosion resistance is important.
Similar to Optimization of Process Parameters in MIG Welding of Two Dissimilar Materials (20)
‘Six Sigma Technique’ A Journey Through its Implementationijtsrd
The manufacturing industries all over the world are facing tough challenges for growth, development and sustainability in today’s competitive environment. They have to achieve apex position by adapting with the global competitive environment by delivering goods and services at low cost, prime quality and better price to increase wealth and consumer satisfaction. Cost Management ensures profit, growth and sustainability of the business with implementation of Continuous Improvement Technique like Six Sigma. This leads to optimize Business performance. The method drives for customer satisfaction, low variation, reduction in waste and cycle time resulting into a competitive advantage over other industries which did not implement it. The main objective of this paper ‘Six Sigma Technique A Journey Through Its Implementation’ is to conceptualize the effectiveness of Six Sigma Technique through the journey of its implementation. Aditi Sunilkumar Ghosalkar "‘Six Sigma Technique’: A Journey Through its Implementation" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64546.pdf Paper Url: https://www.ijtsrd.com/other-scientific-research-area/other/64546/‘six-sigma-technique’-a-journey-through-its-implementation/aditi-sunilkumar-ghosalkar
Edge Computing in Space Enhancing Data Processing and Communication for Space...ijtsrd
Edge computing, a paradigm that involves processing data closer to its source, has gained significant attention for its potential to revolutionize data processing and communication in space missions. With the increasing complexity and data volume generated by modern space missions, traditional centralized computing approaches face challenges related to latency, bandwidth, and security. Edge computing in space, involving on board processing and analysis of data, offers promising solutions to these challenges. This paper explores the concept of edge computing in space, its benefits, applications, and future prospects in enhancing space missions. Manish Verma "Edge Computing in Space: Enhancing Data Processing and Communication for Space Missions" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64541.pdf Paper Url: https://www.ijtsrd.com/computer-science/artificial-intelligence/64541/edge-computing-in-space-enhancing-data-processing-and-communication-for-space-missions/manish-verma
Dynamics of Communal Politics in 21st Century India Challenges and Prospectsijtsrd
Communal politics in India has evolved through centuries, weaving a complex tapestry shaped by historical legacies, colonial influences, and contemporary socio political transformations. This research comprehensively examines the dynamics of communal politics in 21st century India, emphasizing its historical roots, socio political dynamics, economic implications, challenges, and prospects for mitigation. The historical perspective unravels the intricate interplay of religious identities and power dynamics from ancient civilizations to the impact of colonial rule, providing insights into the evolution of communalism. The socio political dynamics section delves into the contemporary manifestations, exploring the roles of identity politics, socio economic disparities, and globalization. The economic implications section highlights how communal politics intersects with economic issues, perpetuating disparities and influencing resource allocation. Challenges posed by communal politics are scrutinized, revealing multifaceted issues ranging from social fragmentation to threats against democratic values. The prospects for mitigation present a multifaceted approach, incorporating policy interventions, community engagement, and educational initiatives. The paper conducts a comparative analysis with international examples, identifying common patterns such as identity politics and economic disparities. It also examines unique challenges, emphasizing Indias diverse religious landscape, historical legacy, and secular framework. Lessons for effective strategies are drawn from international experiences, offering insights into inclusive policies, interfaith dialogue, media regulation, and global cooperation. By scrutinizing historical epochs, contemporary dynamics, economic implications, and international comparisons, this research provides a comprehensive understanding of communal politics in India. The proposed strategies for mitigation underscore the importance of a holistic approach to foster social harmony, inclusivity, and democratic values. Rose Hossain "Dynamics of Communal Politics in 21st Century India: Challenges and Prospects" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64528.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/history/64528/dynamics-of-communal-politics-in-21st-century-india-challenges-and-prospects/rose-hossain
Assess Perspective and Knowledge of Healthcare Providers Towards Elehealth in...ijtsrd
Background and Objective Telehealth has become a well known tool for the delivery of health care in Saudi Arabia, and the perspective and knowledge of healthcare providers are influential in the implementation, adoption and advancement of the method. This systematic review was conducted to examine the current literature base regarding telehealth and the related healthcare professional perspective and knowledge in the Kingdom of Saudi Arabia. Materials and Methods This systematic review was conducted by searching 7 databases including, MEDLINE, CINHAL, Web of Science, Scopus, PubMed, PsycINFO, and ProQuest Central. Studies on healthcare practitioners telehealth knowledge and perspectives published in English in Saudi Arabia from 2000 to 2023 were included. Boland directed this comprehensive review. The researchers examined each connected study using the AXIS tool, which evaluates cross sectional systematic reviews. Narrative synthesis was used to summarise and convey the data. Results Out of 1840 search results, 10 studies were included. Positive outlook and limited knowledge among providers were seen across trials. Healthcare professionals like telehealth for its ability to improve quality, access, and delivery, save time and money, and be successful. Age, gender, occupation, and work experience also affect health workers knowledge. In Saudi Arabia, healthcare professionals face inadequate expert assistance, patient privacy, internet connection concerns, lack of training courses, lack of telehealth understanding, and high costs while performing telemedicine. Conclusions Healthcare practitioners telehealth perceptions and knowledge were examined in this systematic study. Its collection of concerned experts different personal attitudes and expertise would help enhance telehealths implementation in Saudi Arabia, develop its healthcare delivery alternative, and eliminate frequent problems. Badriah Mousa I Mulayhi | Dr. Jomin George | Judy Jenkins "Assess Perspective and Knowledge of Healthcare Providers Towards Elehealth in Saudi Arabia: A Systematic Review" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64535.pdf Paper Url: https://www.ijtsrd.com/medicine/other/64535/assess-perspective-and-knowledge-of-healthcare-providers-towards-elehealth-in-saudi-arabia-a-systematic-review/badriah-mousa-i-mulayhi
The Impact of Digital Media on the Decentralization of Power and the Erosion ...ijtsrd
The impact of digital media on the distribution of power and the weakening of traditional gatekeepers has gained considerable attention in recent years. The adoption of digital technologies and the internet has resulted in declining influence and power for traditional gatekeepers such as publishing houses and news organizations. Simultaneously, digital media has facilitated the emergence of new voices and players in the media industry. Digital medias impact on power decentralization and gatekeeper erosion is visible in several ways. One significant aspect is the democratization of information, which enables anyone with an internet connection to publish and share content globally, leading to citizen journalism and bypassing traditional gatekeepers. Another aspect is the disruption of conventional media industry business models, as traditional organizations struggle to adjust to the decrease in advertising revenue and the rise of digital platforms. Alternative business models, such as subscription models and crowdfunding, have become more prevalent, leading to the emergence of new players. Overall, the impact of digital media on the distribution of power and the weakening of traditional gatekeepers has brought about significant changes in the media landscape and the way information is shared. Further research is required to fully comprehend the implications of these changes and their impact on society. Dr. Kusum Lata "The Impact of Digital Media on the Decentralization of Power and the Erosion of Traditional Gatekeepers" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64544.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/political-science/64544/the-impact-of-digital-media-on-the-decentralization-of-power-and-the-erosion-of-traditional-gatekeepers/dr-kusum-lata
Online Voices, Offline Impact Ambedkars Ideals and Socio Political Inclusion ...ijtsrd
This research investigates the nexus between online discussions on Dr. B.R. Ambedkars ideals and their impact on social inclusion among college students in Gurugram, Haryana. Surveying 240 students from 12 government colleges, findings indicate that 65 actively engage in online discussions, with 80 demonstrating moderate to high awareness of Ambedkars ideals. Statistically significant correlations reveal that higher online engagement correlates with increased awareness p 0.05 and perceived social inclusion. Variations across colleges and a notable effect of college type on perceived social inclusion highlight the influence of contextual factors. Furthermore, the intersectional analysis underscores nuanced differences based on gender, caste, and socio economic status. Dr. Kusum Lata "Online Voices, Offline Impact: Ambedkar's Ideals and Socio-Political Inclusion - A Study of Gurugram District" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64543.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/political-science/64543/online-voices-offline-impact-ambedkars-ideals-and-sociopolitical-inclusion--a-study-of-gurugram-district/dr-kusum-lata
Problems and Challenges of Agro Entreprenurship A Studyijtsrd
Noting calls for contextualizing Agro entrepreneurs problems and challenges of the agro entrepreneurs and for greater attention to the Role of entrepreneurs in agro entrepreneurship research, we conduct a systematic literature review of extent research in agriculture entrepreneurship to overcome the study objectives of complications of agro entrepreneurs through various factors, Development of agriculture products is a key factor for the overall economic growth of agro entrepreneurs Agro Entrepreneurs produces firsthand large scale employment, utilizes the labor and natural resources, This research outlines the problems of Weather and Soil Erosions, Market price fluctuation, stimulates labor cost problems, reduces concentration of Price volatility, Dependency on Intermediaries, induces Limited Bargaining Power, and Storage and Transportation Costs. This paper mainly devoted to highlight Problems and challenges faced for the sustainable of Agro Entrepreneurs in India. Vinay Prasad B "Problems and Challenges of Agro Entreprenurship - A Study" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64540.pdf Paper Url: https://www.ijtsrd.com/other-scientific-research-area/other/64540/problems-and-challenges-of-agro-entreprenurship--a-study/vinay-prasad-b
Comparative Analysis of Total Corporate Disclosure of Selected IT Companies o...ijtsrd
Disclosure is a process through which a business enterprise communicates with external parties. A corporate disclosure is communication of financial and non financial information of the activities of a business enterprise to the interested entities. Corporate disclosure is done through publishing annual reports. So corporate disclosure through annual reports plays a vital role in the life of all the companies and provides valuable information to investors. The basic objectives of corporate disclosure is to give a true and fair view of companies to the parties related either directly or indirectly like owner, government, creditors, shareholders etc. in the companies act, provisions have been made about mandatory and voluntary disclosure. The IT sector in India is rapidly growing, the trend to invest in the IT sector is rising and employment opportunities in IT sectors are also increasing. Therefore the IT sector is expected to have fair, full and adequate disclosure of all information. Unfair and incomplete disclosure may adversely affect the entire economy. A research study on disclosure practices of IT companies could play an important role in this regard. Hence, the present research study has been done to study and review comparative analysis of total corporate disclosure of selected IT companies of India and to put forward overall findings and suggestions with a view to increase disclosure score of these companies. The researcher hopes that the present research study will be helpful to all selected Companies for improving level of corporate disclosure through annual reports as well as the government, creditors, investors, all business organizations and upcoming researcher for comparative analyses of level of corporate disclosure with special reference to selected IT companies. Dr. Vaibhavi D. Thaker "Comparative Analysis of Total Corporate Disclosure of Selected IT Companies of India" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64539.pdf Paper Url: https://www.ijtsrd.com/other-scientific-research-area/other/64539/comparative-analysis-of-total-corporate-disclosure-of-selected-it-companies-of-india/dr-vaibhavi-d-thaker
The Impact of Educational Background and Professional Training on Human Right...ijtsrd
This study investigated the impact of educational background and professional training on human rights awareness among secondary school teachers in the Marathwada region of Maharashtra, India. The key findings reveal that higher levels of education, particularly a master’s degree, and fields of study related to education, humanities, or social sciences are associated with greater human rights awareness among teachers. Additionally, both pre service teacher training and in service professional development programs focused on human rights education significantly enhance teacher’s knowledge, skills, and competencies in promoting human rights principles in their classrooms. Baig Ameer Bee Mirza Abdul Aziz | Dr. Syed Azaz Ali Amjad Ali "The Impact of Educational Background and Professional Training on Human Rights Awareness among Secondary School Teachers" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64529.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/education/64529/the-impact-of-educational-background-and-professional-training-on-human-rights-awareness-among-secondary-school-teachers/baig-ameer-bee-mirza-abdul-aziz
A Study on the Effective Teaching Learning Process in English Curriculum at t...ijtsrd
“One Language sets you in a corridor for life. Two languages open every door along the way” Frank Smith English as a foreign language or as a second language has been ruling in India since the period of Lord Macaulay. But the question is how much we teach or learn English properly in our culture. Is there any scope to use English as a language rather than a subject How much we learn or teach English without any interference of mother language specially in the classroom teaching learning scenario in West Bengal By considering all these issues the researcher has attempted in this article to focus on the effective teaching learning process comparing to other traditional strategies in the field of English curriculum at the secondary level to investigate whether they fulfill the present teaching learning requirements or not by examining the validity of the present curriculum of English. The purpose of this study is to focus on the effectiveness of the systematic, scientific, sequential and logical transaction of the course between the teachers and the learners in the perspective of the 5Es programme that is engage, explore, explain, extend and evaluate. Sanchali Mondal | Santinath Sarkar "A Study on the Effective Teaching Learning Process in English Curriculum at the Secondary Level of West Bengal" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd62412.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/education/62412/a-study-on-the-effective-teaching-learning-process-in-english-curriculum-at-the-secondary-level-of-west-bengal/sanchali-mondal
The Role of Mentoring and Its Influence on the Effectiveness of the Teaching ...ijtsrd
This paper reports on a study which was conducted to investigate the role of mentoring and its influence on the effectiveness of the teaching of Physics in secondary schools in the South West Region of Cameroon. The study adopted the convergent parallel mixed methods design, focusing on respondents in secondary schools in the South West Region of Cameroon. Both quantitative and qualitative data were collected, analysed separately, and the results were compared to see if the findings confirm or disconfirm each other. The quantitative analysis found that majority of the respondents 72 of Physics teachers affirmed that they had more experienced colleagues as mentors to help build their confidence, improve their teaching, and help them improve their effectiveness and efficiency in guiding learners’ achievements. Only 28 of the respondents disagreed with these statements. With majority respondents 72 agreeing with the statements, it implies that in most secondary schools, experienced Physics teachers act as mentors to build teachers’ confidence in teaching and improving students’ learning. The interview qualitative data analysis summarized how secondary school Principals use meetings with mentors and mentees to promote mentorship in the school milieu. This has helped strengthen teachers’ classroom practices in secondary schools in the South West Region of Cameroon. With the results confirming each other, the study recommends that mentoring should focus on helping teachers employ social interactions and instructional practices feedback and clarity in teaching that have direct measurable impact on students’ learning achievements. Andrew Ngeim Sumba | Frederick Ebot Ashu | Peter Agborbechem Tambi "The Role of Mentoring and Its Influence on the Effectiveness of the Teaching of Physics in Secondary Schools in the South West Region of Cameroon" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64524.pdf Paper Url: https://www.ijtsrd.com/management/management-development/64524/the-role-of-mentoring-and-its-influence-on-the-effectiveness-of-the-teaching-of-physics-in-secondary-schools-in-the-south-west-region-of-cameroon/andrew-ngeim-sumba
Design Simulation and Hardware Construction of an Arduino Microcontroller Bas...ijtsrd
This study primarily focuses on the design of a high side buck converter using an Arduino microcontroller. The converter is specifically intended for use in DC DC applications, particularly in standalone solar PV systems where the PV output voltage exceeds the load or battery voltage. To evaluate the performance of the converter, simulation experiments are conducted using Proteus Software. These simulations provide insights into the input and output voltages, currents, powers, and efficiency under different state of charge SoC conditions of a 12V,70Ah rechargeable lead acid battery. Additionally, the hardware design of the converter is implemented, and practical data is collected through operation, monitoring, and recording. By comparing the simulation results with the practical results, the efficiency and performance of the designed converter are assessed. The findings indicate that while the buck converter is suitable for practical use in standalone PV systems, its efficiency is compromised due to a lower output current. Chan Myae Aung | Dr. Ei Mon "Design Simulation and Hardware Construction of an Arduino-Microcontroller Based DC-DC High-Side Buck Converter for Standalone PV System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64518.pdf Paper Url: https://www.ijtsrd.com/engineering/mechanical-engineering/64518/design-simulation-and-hardware-construction-of-an-arduinomicrocontroller-based-dcdc-highside-buck-converter-for-standalone-pv-system/chan-myae-aung
Sustainable Energy by Paul A. Adekunte | Matthew N. O. Sadiku | Janet O. Sadikuijtsrd
Energy becomes sustainable if it meets the needs of the present without compromising the ability of future generations to meet their own needs. Some of the definitions of sustainable energy include the considerations of environmental aspects such as greenhouse gas emissions, social, and economic aspects such as energy poverty. Generally far more sustainable than fossil fuel are renewable energy sources such as wind, hydroelectric power, solar, and geothermal energy sources. Worthy of note is that some renewable energy projects, like the clearing of forests to produce biofuels, can cause severe environmental damage. The sustainability of nuclear power which is a low carbon source is highly debated because of concerns about radioactive waste, nuclear proliferation, and accidents. The switching from coal to natural gas has environmental benefits, including a lower climate impact, but could lead to delay in switching to more sustainable options. “Carbon capture and storage” can be built into power plants to remove the carbon dioxide CO2 emissions, but this technology is expensive and has rarely been implemented. Leading non renewable energy sources around the world is fossil fuels, coal, petroleum, and natural gas. Nuclear energy is usually considered another non renewable energy source, although nuclear energy itself is a renewable energy source, but the material used in nuclear power plants is not. The paper addresses the issue of sustainable energy, its attendant benefits to the future generation, and humanity in general. Paul A. Adekunte | Matthew N. O. Sadiku | Janet O. Sadiku "Sustainable Energy" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64534.pdf Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/64534/sustainable-energy/paul-a-adekunte
Concepts for Sudan Survey Act Implementations Executive Regulations and Stand...ijtsrd
This paper aims to outline the executive regulations, survey standards, and specifications required for the implementation of the Sudan Survey Act, and for regulating and organizing all surveying work activities in Sudan. The act has been discussed for more than 5 years. The Land Survey Act was initiated by the Sudan Survey Authority and all official legislations were headed by the Sudan Ministry of Justice till it was issued in 2022. The paper presents conceptual guidelines to be used for the Survey Act implementation and to regulate the survey work practice, standardizing the field surveys, processing, quality control, procedures, and the processes related to survey work carried out by the stakeholders and relevant authorities in Sudan. The conceptual guidelines are meant to improve the quality and harmonization of geospatial data and to aid decision making processes as well as geospatial information systems. The established comprehensive executive regulations will govern and regulate the implementation of the Sudan Survey Geomatics Act in all surveying and mapping practices undertaken by the Sudan Survey Authority SSA and state local survey departments for public or private sector organizations. The targeted standards and specifications include the reference frame, projection, coordinate systems, and the guidelines and specifications that must be followed in the field of survey work, processes, and mapping products. In the last few decades, there has been a growing awareness of the importance of geomatics activities and measurements on the Earths surface in space and time, together with observing and mapping the changes. In such cases, data must be captured promptly, standardized, and obtained with more accuracy and specified in much detail. The paper will also highlight the current situation in Sudan, the degree to which survey standards are used, the problems encountered, and the errors that arise from not using the standards and survey specifications. Kamal A. A. Sami "Concepts for Sudan Survey Act Implementations - Executive Regulations and Standards" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd63484.pdf Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/63484/concepts-for-sudan-survey-act-implementations--executive-regulations-and-standards/kamal-a-a-sami
Towards the Implementation of the Sudan Interpolated Geoid Model Khartoum Sta...ijtsrd
The discussions between ellipsoid and geoid have invoked many researchers during the recent decades, especially during the GNSS technology era, which had witnessed a great deal of development but still geoid undulation requires more investigations. To figure out a solution for Sudans local geoid, this research has tried to intake the possibility of determining the geoid model by following two approaches, gravimetric and geometrical geoid model determination, by making use of GNSS leveling benchmarks at Khartoum state. The Benchmarks are well distributed in the study area, in which, the horizontal coordinates and the height above the ellipsoid have been observed by GNSS while orthometric heights were carried out using precise leveling. The Global Geopotential Model GGM represented in EGM2008 has been exploited to figure out the geoid undulation at the benchmarks in the study area. This is followed by a fitting process, that has been done to suit the geoid undulation data which has been computed using GNSS leveling data and geoid undulation inspired by the EGM2008. Two geoid surfaces were created after the fitting process to ensure that they are identical and both of them could be counted for getting the same geoid undulation with an acceptable accuracy. In this respect, statistical operation played an important role in ensuring the consistency and integrity of the model by applying cross validation techniques splitting the data into training and testing datasets for building the geoid model and testing its eligibility. The geometrical solution for geoid undulation computation has been utilized by applying straightforward equations that facilitate the calculation of the geoid undulation directly through applying statistical techniques for the GNSS leveling data of the study area to get the common equation parameters values that could be utilized to calculate geoid undulation of any position in the study area within the claimed accuracy. Both systems were checked and proved eligible to be used within the study area with acceptable accuracy which may contribute to solving the geoid undulation problem in the Khartoum area, and be further generalized to determine the geoid model over the entire country, and this could be considered in the future, for regional and continental geoid model. Ahmed M. A. Mohammed. | Kamal A. A. Sami "Towards the Implementation of the Sudan Interpolated Geoid Model (Khartoum State Case Study)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd63483.pdf Paper Url: https://www.ijtsrd.com/engineering/civil-engineering/63483/towards-the-implementation-of-the-sudan-interpolated-geoid-model-khartoum-state-case-study/ahmed-m-a-mohammed
Activating Geospatial Information for Sudans Sustainable Investment Mapijtsrd
Sudan is witnessing an acceleration in the processes of development and transformation in the performance of government institutions to raise the productivity and investment efficiency of the government sector. The development plans and investment opportunities have focused on achieving national goals in various sectors. This paper aims to illuminate the path to the future and provide geospatial data and information to develop the investment climate and environment for all sized businesses, and to bridge the development gap between the Sudan states. The Sudan Survey Authority SSA is the main advisor to the Sudan Government in conducting surveying, mappings, designing, and developing systems related to geospatial data and information. In recent years, SSA made a strategic partnership with the Ministry of Investment to activate Geospatial Information for Sudans Sustainable Investment and in particular, for the preparation and implementation of the Sudan investment map, based on the directives and objectives of the Ministry of Investment MI in Sudan. This paper comes within the framework of activating the efforts of the Ministry of Investment to develop technical investment services by applying techniques adopted by the Ministry and its strategic partners for advancing investment processes in the country. Kamal A. A. Sami "Activating Geospatial Information for Sudan's Sustainable Investment Map" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd63482.pdf Paper Url: https://www.ijtsrd.com/engineering/information-technology/63482/activating-geospatial-information-for-sudans-sustainable-investment-map/kamal-a-a-sami
Educational Unity Embracing Diversity for a Stronger Societyijtsrd
In a rapidly changing global landscape, the importance of education as a unifying force cannot be overstated. This paper explores the crucial role of educational unity in fostering a stronger and more inclusive society through the embrace of diversity. By examining the benefits of diverse learning environments, the paper aims to highlight the positive impact on societal strength. The discussion encompasses various dimensions, from curriculum design to classroom dynamics, and emphasizes the need for educational institutions to become catalysts for unity in diversity. It highlights the need for a paradigm shift in educational policies, curricula, and pedagogical approaches to ensure that they are reflective of the diverse fabric of society. This paper also addresses the challenges associated with implementing inclusive educational practices and offers practical strategies for overcoming barriers. It advocates for collaborative efforts between educational institutions, policymakers, and communities to create a supportive ecosystem that promotes diversity and unity. Mr. Amit Adhikari | Madhumita Teli | Gopal Adhikari "Educational Unity: Embracing Diversity for a Stronger Society" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64525.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/education/64525/educational-unity-embracing-diversity-for-a-stronger-society/mr-amit-adhikari
Integration of Indian Indigenous Knowledge System in Management Prospects and...ijtsrd
The diversity of indigenous knowledge systems in India is vast and can vary significantly between different communities and regions. Preserving and respecting these knowledge systems is crucial for maintaining cultural heritage, promoting sustainable practices, and fostering cross cultural understanding. In this paper, an overview of the prospects and challenges associated with incorporating Indian indigenous knowledge into management is explored. It is found that IIKS helps in management in many areas like sustainable development, tourism, food security, natural resource management, cultural preservation and innovation, etc. However, IIKS integration with management faces some challenges in the form of a lack of documentation, cultural sensitivity, language barriers legal framework, etc. Savita Lathwal "Integration of Indian Indigenous Knowledge System in Management: Prospects and Challenges" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd63500.pdf Paper Url: https://www.ijtsrd.com/management/accounting-and-finance/63500/integration-of-indian-indigenous-knowledge-system-in-management-prospects-and-challenges/savita-lathwal
DeepMask Transforming Face Mask Identification for Better Pandemic Control in...ijtsrd
The COVID 19 pandemic has highlighted the crucial need of preventive measures, with widespread use of face masks being a key method for slowing the viruss spread. This research investigates face mask identification using deep learning as a technological solution to be reducing the risk of coronavirus transmission. The proposed method uses state of the art convolutional neural networks CNNs and transfer learning to automatically recognize persons who are not wearing masks in a variety of circumstances. We discuss how this strategy improves public health and safety by providing an efficient manner of enforcing mask wearing standards. The report also discusses the obstacles, ethical concerns, and prospective applications of face mask detection systems in the ongoing fight against the pandemic. Dilip Kumar Sharma | Aaditya Yadav "DeepMask: Transforming Face Mask Identification for Better Pandemic Control in the COVID-19 Era" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd64522.pdf Paper Url: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/64522/deepmask-transforming-face-mask-identification-for-better-pandemic-control-in-the-covid19-era/dilip-kumar-sharma
Streamlining Data Collection eCRF Design and Machine Learningijtsrd
Efficient and accurate data collection is paramount in clinical trials, and the design of Electronic Case Report Forms eCRFs plays a pivotal role in streamlining this process. This paper explores the integration of machine learning techniques in the design and implementation of eCRFs to enhance data collection efficiency. We delve into the synergies between eCRF design principles and machine learning algorithms, aiming to optimize data quality, reduce errors, and expedite the overall data collection process. The application of machine learning in eCRF design brings forth innovative approaches to data validation, anomaly detection, and real time adaptability. This paper discusses the benefits, challenges, and future prospects of leveraging machine learning in eCRF design for streamlined and advanced data collection in clinical trials. Dhanalakshmi D | Vijaya Lakshmi Kannareddy "Streamlining Data Collection: eCRF Design and Machine Learning" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-8 | Issue-1 , February 2024, URL: https://www.ijtsrd.com/papers/ijtsrd63515.pdf Paper Url: https://www.ijtsrd.com/biological-science/biotechnology/63515/streamlining-data-collection-ecrf-design-and-machine-learning/dhanalakshmi-d
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
How to Manage Your Lost Opportunities in Odoo 17 CRMCeline George
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Optimization of Process Parameters in MIG Welding of Two Dissimilar Materials
1. International Journal of Trend in
International Open Access Journal
ISSN No: 2456
@ IJTSRD | Available Online @ www.ijtsrd.com
Optimization
Welding of Two
M. S. Amarnath Reddy
1
P
Sri Venkateswara Institute
ABSTRACT
The joining of dissimilar Aluminum Alloy and
Copper aluminum plates of 5mm thickness was
carried out by technique. Optimum process
parameters were obtained for joints using
approach. Five different tool designs have been
employed to an alyse the influence of rotation speed
and traverse speed over the micro structural and
tensile properties.
In FSW technique, the process of welding of the base
material, well below its melting temperature, has
opened up new trends in producing efficient
dissimilar joints. Effect of welding speed on
microstructures, hardness distribution and tensile
properties of the welded joints were investigated. By
varying the process parameters, defect free and high
efficiency welded joints were produced.
The ratio between tool shoulder diameter and pin
diameter is the most dominant factor. From micro
structural analysis it is evident that the material placed
on the advancing side dominates the nugget region.
The hardness in the HAZ of 6061 was found to be
minimum, where the welded joints failed during the
tensile studies.
Keywords: Mig Welding Technique, Haz.
INTRODUCTION
MIG Welding is a process by which two similar or
dissimilar metals may be joined by heating them to
suitable temperatures with or without the application
of the pressure and without use of filler metal. The
filler metal has its melting point either approximately
the same as that of the work piece metal or little lower
but normally about 430degree centigrade.
International Journal of Trend in Scientific Research and Development (IJTSRD)
International Open Access Journal | www.ijtsrd.com
ISSN No: 2456 - 6470 | Volume - 2 | Issue – 6 | Sep
www.ijtsrd.com | Volume – 2 | Issue – 6 | Sep-Oct 2018
Optimization of Process Parameters in MIG
Welding of Two Dissimilar Materials
Amarnath Reddy1
, Mr. J. Sree Hari2
, Mr. K. Sai Kiran
PG. Scholar, 2
Assistant Professor
Sri Venkateswara Institute of Technology, Anantapuram, Andhra Pradesh
The joining of dissimilar Aluminum Alloy and
Copper aluminum plates of 5mm thickness was
carried out by technique. Optimum process
parameters were obtained for joints using statistical
approach. Five different tool designs have been
alyse the influence of rotation speed
and traverse speed over the micro structural and
In FSW technique, the process of welding of the base
w its melting temperature, has
opened up new trends in producing efficient
dissimilar joints. Effect of welding speed on
microstructures, hardness distribution and tensile
properties of the welded joints were investigated. By
, defect free and high
efficiency welded joints were produced.
The ratio between tool shoulder diameter and pin
diameter is the most dominant factor. From micro
structural analysis it is evident that the material placed
nugget region.
The hardness in the HAZ of 6061 was found to be
minimum, where the welded joints failed during the
Mig Welding Technique, Haz.
MIG Welding is a process by which two similar or
be joined by heating them to
suitable temperatures with or without the application
of the pressure and without use of filler metal. The
filler metal has its melting point either approximately
the same as that of the work piece metal or little lower
mally about 430degree centigrade.
During welding the edges of the work piece’s to be
welded are heated by several ways. Heat may be
derived from electric arc, oxy
hydrogen flame, black smith fire or chemical reaction
as in case of the rm it welding.
AUTOGENEOS WELDING:
Welding consists of those processes in which similar
metals are joined with the help of filler rod of same
metal.
EX: mild steel, cast iron.
HETEROGENEOUS WELDING:
It is a method in which dissimilar metals are joined.
The metals being joined are brought up to critical
temperature or plastic state and the filler rod is used.
The melting point of filler rod less
for easy melting.
EX: copper<->brass.
CLASSIFICATION OF WELDING
Welding is classified into two types. They are
Fusion (or) non pressure welding
Pressure welding
FUSION (OR) NON PRESSURE WELDING:
It involves heating of work pieces to be joined to a
temperature above the melting point of the
the work pieces. This way the fusion of base metal of
work pieces takes place and these are joined together
without the application of any pressure. Fusion
welding involves the use of additional filler metal
through an electrode.
Research and Development (IJTSRD)
www.ijtsrd.com
6 | Sep – Oct 2018
Oct 2018 Page: 992
ers in MIG
Sai Kiran2
Andhra Pradesh, India
During welding the edges of the work piece’s to be
welded are heated by several ways. Heat may be
derived from electric arc, oxy-acetylene or oxy-
hydrogen flame, black smith fire or chemical reaction
it welding.
AUTOGENEOS WELDING:
Welding consists of those processes in which similar
metals are joined with the help of filler rod of same
HETEROGENEOUS WELDING:
It is a method in which dissimilar metals are joined.
The metals being joined are brought up to critical
temperature or plastic state and the filler rod is used.
rod less than parent metals
CLASSIFICATION OF WELDING:
Welding is classified into two types. They are
Fusion (or) non pressure welding
FUSION (OR) NON PRESSURE WELDING:
It involves heating of work pieces to be joined to a
temperature above the melting point of the metal of
the work pieces. This way the fusion of base metal of
work pieces takes place and these are joined together
without the application of any pressure. Fusion
welding involves the use of additional filler metal
2. International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
@ IJTSRD | Available Online @ www.ijtsrd.com
PRESSURE WELDING:
It involves heating of work pieces to the temperature
range in which the base metal of the work pieces
becomes plastic and then the work pieces joined
together by applying pressure on them. No additional
filler metal is used in pressure welding.
SUBMERGED ARC WELDING:
Mode of Operation:
An arc is maintained between the end of a bare wire
electrode and the work. As the electrode is melted, it
is fed into the arc by a set of rolls driven by a
governed motor. Wire feed speed is automatically
controlled to equal the rate at which the electrode is
melted, thus arc length is constant (similar to
MIG/MAG-constant voltage).
Joint Preparation:
Joint preparation depends on plate thickness, type of
joint e.g. circumferential or longitudinal and to s
extent on the standards to which the structure is being
made. Plates of up to 14mm thick can be butt welded
without preparation with a gap not exceeding 1mm or
10% of the plate thickness, whichever is the greater.
Thicker plates need preparation if full penetration is to
be obtained. Variable fit up cannot be tolerated.
Welding Procedure:
In general the more severe the low temperature notch
toughness requirements, the lower the maximum
welding current that can be used. This is to minimize
heat input and means that a multi pass technique may
be required. When welding stainless steels the heat
input should be kept low because it has poor thermal
conductivity and a high coefficient of expansion
compared with mild steel. These two effects lead to
overheating and excessive distortion if large diameter
wires and high currents are used. Multi
using small diameter wires are therefore
recommended for stainless steels and high nickel
alloys such as Inconel.
Selection of the correct welding conditions
plate thickness and joint preparation to be welded is
very important if satisfactory joints free from defects
such as cracking, porosity and undercut are to be
obtained. The process variables which have to be
considered are:
1. Electrode polarity
2. Welding Current
3. Electrode Diameter
4. Arc Voltage
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
www.ijtsrd.com | Volume – 2 | Issue – 6 | Sep-Oct 2018
It involves heating of work pieces to the temperature
range in which the base metal of the work pieces
becomes plastic and then the work pieces joined
together by applying pressure on them. No additional
An arc is maintained between the end of a bare wire
electrode and the work. As the electrode is melted, it
is fed into the arc by a set of rolls driven by a
governed motor. Wire feed speed is automatically
controlled to equal the rate at which the electrode is
melted, thus arc length is constant (similar to
Joint preparation depends on plate thickness, type of
joint e.g. circumferential or longitudinal and to some
extent on the standards to which the structure is being
made. Plates of up to 14mm thick can be butt welded
without preparation with a gap not exceeding 1mm or
10% of the plate thickness, whichever is the greater.
l penetration is to
be obtained. Variable fit up cannot be tolerated.
In general the more severe the low temperature notch
toughness requirements, the lower the maximum
welding current that can be used. This is to minimize
pass technique may
be required. When welding stainless steels the heat
input should be kept low because it has poor thermal
conductivity and a high coefficient of expansion
compared with mild steel. These two effects lead to
g and excessive distortion if large diameter
wires and high currents are used. Multi-run welds
using small diameter wires are therefore
recommended for stainless steels and high nickel
Selection of the correct welding conditions for the
plate thickness and joint preparation to be welded is
very important if satisfactory joints free from defects
such as cracking, porosity and undercut are to be
obtained. The process variables which have to be
5. Welding Speed
6. Electrode Extension
7. Electrode Angle
Principle Of Operation:
Schematic diagram of the FSW process: Two discrete
metal work pieces butted together, along with the tool.
The progress of the tool through the joint, also
showing the weld zone and the regio
tool shoulder, In FSW, a cylindrical
with a profile of threaded/unthreaded nib is rotated at
a constant speed and fed at a constant traverse rate
into the joint line between two pieces of sheet or plate
material, which are butted together.
Frictional heat is generated between the wear
welding tool shoulder and nib, and the material of the
work pieces. This heat, along with the heat generated
by the mechanical mixing process and the adiabatic
heat within the material, cause the stirred materials to
soften without reaching the melting point (hence cited
a solid-state process), allowing the traversing of the
tool along the weld line in a plasticized tub
of metal.
METHODOLOGY:
Mig Welding Parameters:
Tool Rotation and Traverse Speeds
There are two tool speeds to be considered in friction
stir welding; how fast the tool rotates and how quickly
it traverses the interface. These two parameters ha
considerable importance and must be chosen with
care to ensure a successful and efficient welding
cycle. The relationship between the welding speeds
and the heat input during welding is complex but, in
general, it can be said that increasing the rotatio
speed or decreasing the traverse speed will result in a
hotter weld. In order to produce a successful weld it is
necessary that the material surrounding the tool is hot
enough to enable the extensive plastic flow required
and mini mise the forces acting
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456-6470
Oct 2018 Page: 993
Schematic diagram of the FSW process: Two discrete
metal work pieces butted together, along with the tool.
through the joint, also
showing the weld zone and the region affected by the
In FSW, a cylindrical-shouldered tool,
/unthreaded nib is rotated at
a constant speed and fed at a constant traverse rate
ine between two pieces of sheet or plate
material, which are butted together.
Frictional heat is generated between the wear-resistant
welding tool shoulder and nib, and the material of the
work pieces. This heat, along with the heat generated
mechanical mixing process and the adiabatic
heat within the material, cause the stirred materials to
soften without reaching the melting point (hence cited
state process), allowing the traversing of the
tool along the weld line in a plasticized tubular shaft
Traverse Speeds
There are two tool speeds to be considered in friction-
stir welding; how fast the tool rotates and how quickly
it traverses the interface. These two parameters have
considerable importance and must be chosen with
care to ensure a successful and efficient welding
cycle. The relationship between the welding speeds
and the heat input during welding is complex but, in
general, it can be said that increasing the rotation
speed or decreasing the traverse speed will result in a
hotter weld. In order to produce a successful weld it is
necessary that the material surrounding the tool is hot
enough to enable the extensive plastic flow required
mise the forces acting on the tool. If the
3. International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
@ IJTSRD | Available Online @ www.ijtsrd.com
material is too cool then voids or other flaws may be
present in the stir zone and in extreme cases the tool
may break.
Tool Tilt and Plunge Depth:
A drawing showing the plunge depth and tilt of the
tool,
The tool is moving to the left. The plunge depth is
defined as the depth of the lowest point of the
shoulder below the surface of the welded plate and
has been found to be a critical parameter for ensuring
weld quality. Plunging the shoulder below the plate
surface increases the pressure below the tool and
helps ensure adequate forging of the material at the
rear of the tool. Tilting the tool by 2-4 degrees, such
that the rear of the tool is lower than the front, has
been found to assist this forging process.
Tool Design:
The design of the tool is a critical factor as a good tool
can improve both the quality of the weld and the
maximum possible welding speed. It is desirable that
the tool material is sufficiently strong, tough and hard
wearing, at the welding temperature. Hot
steel such as AISI H13 has proven perfectly
acceptable for welding aluminum
thickness ranges of 0.5 – 50 mm but more advanced
tool materials are necessary for more demanding
applications such as highly abrasive
composites or higher melting point materials such as
steel or titanium.
WELDING FORCES:
During welding a number of forces will act on the
tool:
A downwards force is necessary to maintain the
position of the tool at or below the material
surface.
The traverse force acts parallel to the tool motion
and is positive in the traverse direction.
The lateral force may act perpendicular to the tool
traverse direction and is defined here as positive
towards the advancing side of the weld.
Torque is required to rotate the tool, the amount of
which will depend on the down force and friction
coefficient (sticking friction).
In order to prevent tool fracture and to minimize
excessive wear and tear on the tool and associated
machinery, the welding cycle should be modified so
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
www.ijtsrd.com | Volume – 2 | Issue – 6 | Sep-Oct 2018
material is too cool then voids or other flaws may be
present in the stir zone and in extreme cases the tool
unge depth and tilt of the
t. The plunge depth is
defined as the depth of the lowest point of the
shoulder below the surface of the welded plate and
has been found to be a critical parameter for ensuring
weld quality. Plunging the shoulder below the plate
ure below the tool and
helps ensure adequate forging of the material at the
4 degrees, such
that the rear of the tool is lower than the front, has
been found to assist this forging process.
The design of the tool is a critical factor as a good tool
can improve both the quality of the weld and the
maximum possible welding speed. It is desirable that
the tool material is sufficiently strong, tough and hard
Hot-worked tool
steel such as AISI H13 has proven perfectly
alloys within
more advanced
tool materials are necessary for more demanding
applications such as highly abrasive metal matrix
or higher melting point materials such as
During welding a number of forces will act on the
is necessary to maintain the
position of the tool at or below the material
The traverse force acts parallel to the tool motion
and is positive in the traverse direction.
The lateral force may act perpendicular to the tool
is defined here as positive
towards the advancing side of the weld.
Torque is required to rotate the tool, the amount of
which will depend on the down force and friction
In order to prevent tool fracture and to minimize
excessive wear and tear on the tool and associated
machinery, the welding cycle should be modified so
that the forces acting on the tool are as low as
and abrupt changes are avoided.
GENERATION AND FLOW OF HEAT
For any welding process it is, in general, desirable to
increase the travel speed and mini
as this will increase productivity and possibly reduce
the impact of welding on the mechanical properties of
the weld. At the same time it is necessary to ensure
that the temperature around the tool is sufficiently
high to permit adequate material flow and prevent
flaws or tool fracture.
The welding cycle can be split into several stages
during which the heat flow and thermal
different:
Dwell. The material is preheated by a stationary,
rotating tool in order to achieve a sufficient
temperature ahead of the tool to allow the
traverse.
Transient heating. When the tool begins to move
there will be a transient perio
production and temperature around the tool will
alter in a complex manner until an essentially
steady-state is reached.
Pseudo steady-state. Although fluctuations in
heat generation will occur the thermal field around
the tool remains effectively constant, at least on
the macroscopic scale.
Post steady-state. Near the end of the weld heat
may ‘reflect’ from the end of the plate leading to
additional heating around the tool.
Heat generation during friction
from two main sources: friction at the surface of the
tool and the deformation of the material around the
tool.
Where ω is the angular velocity of the tool,
shoulder is the radius of the tool shoulder and
that of the pin. Several other equations have been
proposed to account for factors such as the pin but the
general approach remains the same.
MATERIALS AND THICKNESSES
Maximum thickness in a single pass is dependent on
machine power, but values
TWI has welded 75mm 6xxx material in a single pass,
and larger thicknesses are possible.
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456-6470
Oct 2018 Page: 994
that the forces acting on the tool are as low as possible
and abrupt changes are avoided.
ND FLOW OF HEAT:
For any welding process it is, in general, desirable to
increase the travel speed and mini mise the heat input
as this will increase productivity and possibly reduce
the impact of welding on the mechanical properties of
me time it is necessary to ensure
that the temperature around the tool is sufficiently
high to permit adequate material flow and prevent
The welding cycle can be split into several stages
during which the heat flow and thermal profile will be
The material is preheated by a stationary,
rotating tool in order to achieve a sufficient
temperature ahead of the tool to allow the
When the tool begins to move
there will be a transient period where the heat
production and temperature around the tool will
alter in a complex manner until an essentially
Although fluctuations in
heat generation will occur the thermal field around
ectively constant, at least on
Near the end of the weld heat
may ‘reflect’ from the end of the plate leading to
additional heating around the tool.
Heat generation during friction-stir welding arises
in sources: friction at the surface of the
tool and the deformation of the material around the
is the angular velocity of the tool, R
is the radius of the tool shoulder and Rpin
that of the pin. Several other equations have been
proposed to account for factors such as the pin but the
general approach remains the same.
MATERIALS AND THICKNESSES:
Maximum thickness in a single pass is dependent on
50mm are achievable.
TWI has welded 75mm 6xxx material in a single pass,
and larger thicknesses are possible.
4. International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
@ IJTSRD | Available Online @ www.ijtsrd.com
2000 series aluminum (Al-Cu)
5000 series aluminum (Al-Mg)
6000 series aluminum (Al-Mg-Si)
7000 series aluminum (Al-Zn)
8000 series aluminum (Al-Li)
MMCs based on aluminium (metal matrix
composites):
Other aluminum alloys of the 1000 (commercially
pure), 3000 (Al-Mn) and 4000 (Al
aluminum castings,
Other materials successfully welded include:
Copper and its alloys
Lead
Titanium and its alloys
Magnesium alloys
Zinc
Plastics
Mild and C-Mn steels
Stainless steel
Nickel alloys
APPLICATIONS:
Shipbuilding and Marine Industries
Base
metal
Ultimate
tensile
Strength
(MPa)
0.2%
Proof
strength
(MPa)
Elongation
AA6061 310 250
Cu 220 125
Panels for decks, sides, bulkheads and floors
Aluminum extrusion
Offshore accommodation
THE MACHINE:
The materials, the welding processes and parameters
used, and the mechanical properties and chemical
compositions of the base materials are described in
this chapter. Characterization techniques and the
mechanical testing procedures employed to evaluate
the welds are also described in detail. The
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
www.ijtsrd.com | Volume – 2 | Issue – 6 | Sep-Oct 2018
(metal matrix
alloys of the 1000 (commercially
Mn) and 4000 (Al-Si) series,
Other materials successfully welded include:
%
Elongation
12
15
Panels for decks, sides, bulkheads and floors
The materials, the welding processes and parameters
used, and the mechanical properties and chemical
rials are described in
this chapter. Characterization techniques and the
mechanical testing procedures employed to evaluate
the welds are also described in detail. The
experimental set up of the friction stir welding
machine and friction stir welding proce
in Figures
THE TOOL:
An illustration of some types of tools,
shoulder whose rotation against the substrate
generates most of the heat required for welding. The
pin on the tool is plunged into the substrate and helps
stir the metal in the solid state.
CHEMICAL COMPOSITION OF THE BASE
MATERIALS:
The major part of this study was conducted on
aluminum alloys of thickness 6 mm, to make these
welds. Initially, to identify the optimal welding
parameters, 5mm thickness plates were used. The
chemical compositions of the base materials used in
this study are given in Table 1.
Table 1 Chemical composition of the base materials
(weight %)
Material Mg M n Fe
AA6061 0.9 0.15 0.7
Mechanical Properties Of The Base Materials
The mechanical properties of the aluminum
6061 and copper are given in Table 2. The values
presented in the table are the average of a minimum of
three investigations.
HARDNESS TESTING:
Hardness testing was conducted using a Vickers
hardness testing machine, using a 100 g load applied
for 15 s. Welds were tested for hardness in the as
welded condition. The results were averaged over a
minimum of 5 tests per sample; more tests were
TENSILE TESTING:
Transverse tensile specimens with a gauge length of
25 mm and a width of 6 mm (overall length: 100 mm)
were prepared from the weld coupons in an as
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456-6470
Oct 2018 Page: 995
experimental set up of the friction stir welding
machine and friction stir welding process are shown
stration of some types of tools, Each tool has a
shoulder whose rotation against the substrate
generates most of the heat required for welding. The
pin on the tool is plunged into the substrate and helps
stir the metal in the solid state.
CHEMICAL COMPOSITION OF THE BASE
major part of this study was conducted on
aluminum alloys of thickness 6 mm, to make these
welds. Initially, to identify the optimal welding
parameters, 5mm thickness plates were used. The
chemical compositions of the base materials used in
given in Table 1.
Table 1 Chemical composition of the base materials
(weight %)
Si Cu Al
0.6 0.25 Remaining
Mechanical Properties Of The Base Materials
The mechanical properties of the aluminum alloy
6061 and copper are given in Table 2. The values
presented in the table are the average of a minimum of
Hardness testing was conducted using a Vickers
using a 100 g load applied
for 15 s. Welds were tested for hardness in the as
welded condition. The results were averaged over a
minimum of 5 tests per sample; more tests were
Transverse tensile specimens with a gauge length of
a width of 6 mm (overall length: 100 mm)
were prepared from the weld coupons in an as-welded
5. International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
@ IJTSRD | Available Online @ www.ijtsrd.com
condition. Room-temperature tensile tests were
conducted on three samples as per ASTM E8 (2010)
on a universal tensile testing machine dimensions of t
Dimensions of the tensile specimen (mm)
RESULTS AND DISCUSSION:
3.1 Friction Stir Welding Of Aa6061-Cu
Friction stir welding trials were performed using
different friction stir welding parameters obtained
from literature. The following process parameters
(Rotational speed - 800 rpm, Welding speed
mm/minute, Shoulder diameter to pin diameter
were used for friction stir welding to get the defect
free good quality welds. Trial and error method were
used get these process parameters.
3.2 Micro Structure:
The base materials used in the study contained grains
elongated in the rolling direction and a large number
of eutectic and inter metallic particles. The Thermo
Mechanically Affected Zone on either side
Figure Microstructures of base materials AA606
Figure Microstructures of HAZ (AA6061
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
www.ijtsrd.com | Volume – 2 | Issue – 6 | Sep-Oct 2018
temperature tensile tests were
conducted on three samples as per ASTM E8 (2010)
on a universal tensile testing machine dimensions of t
s of the tensile specimen (mm)
Cu:
Friction stir welding trials were performed using
different friction stir welding parameters obtained
from literature. The following process parameters
800 rpm, Welding speed - 40
mm/minute, Shoulder diameter to pin diameter - 3)
were used for friction stir welding to get the defect
free good quality welds. Trial and error method were
The base materials used in the study contained grains
elongated in the rolling direction and a large number
metallic particles. The Thermo
Mechanically Affected Zone on either side
of base materials AA6061
Microstructures of HAZ (AA6061-Cu)
Advancing side
AA6061
BAS
E
HAZ
TM
AZ
NUGG
ET
131.
2
109.
1
113.
3
106.7
129.
8
110.
8
111.
5
108.3
128
117.
8
111.
9
94.1
118.
6
119.
3
113.
2
107
128.
1
117.
4
105.
8
108.7
122.
8
111.
6
114.
9
107.8
122.
1
108.
4
107.
8
93.8
119.
9
121.
2
113.
3
102.6
124.
4
116.
8
115.
9
106.1
122.
3
120.
2
120.
1
98.2
127.
4
115.
4
111.
4
102.4
126.
8
113.
6
109.
2
105.2
Average Hardness
Value
125.
12
113.
13
112.
36
103.41
CONCLUSION
From the experiments and the
the friction stir welding of dissimilar aluminum
alloy 6061 to Cu, the following conclusions are
drawn.
Friction stir welding can produce defect free butt
welds, between AA6061-
efficiency of around 95% (based on t
strength of the softer material i.e. AA6061).
The weld joints were stronger than the softer base
material, and the tensile failures occur in the heat
affected zone of the alloy 6061.
The MIG welding process parameters were
optimized, with respect to tensile strength of the
joint and the optimum level of settings were
found. The optimum levels of the rotational speed,
transverse speed, and the ratio of shoulder
diameter to pin diameter (D/d) are 900 rpm, 15
mm/min and 2.5 respectively.
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456-6470
Oct 2018 Page: 996
Retreating side
AA6061
NUGG TM
AZ
HAZ
BAS
E
106.7
115.
9
111.
2
130.
1
108.3
112.
9
108.
1
132.
4
106.
3
104.
4
126.
4
112.
9
117.
8
126.
9
108.7
118.
2
109.
6
127.
8
107.8
117.
2
113.
3
120.
4
112.
3
111.
2
121.
2
102.6
109.
6
117.
8
126.
4
106.1
104.
9
119.
3
121.
9
112.
3
120.
5
122.
6
102.4
109.
6
108.
3
128.
4
105.2
114.
2
117.
6
127.
6
Average Hardness
Value
103.41
112.
19
113.
26
126.
01
From the experiments and the study conducted on
the friction stir welding of dissimilar aluminum
alloy 6061 to Cu, the following conclusions are
Friction stir welding can produce defect free butt
-Cu plates, with a joint
efficiency of around 95% (based on the yield
strength of the softer material i.e. AA6061).
The weld joints were stronger than the softer base
material, and the tensile failures occur in the heat-
affected zone of the alloy 6061.
The MIG welding process parameters were
to tensile strength of the
joint and the optimum level of settings were
found. The optimum levels of the rotational speed,
transverse speed, and the ratio of shoulder
diameter to pin diameter (D/d) are 900 rpm, 15
mm/min and 2.5 respectively.
6. International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
@ IJTSRD | Available Online @ www.ijtsrd.com
REFERENCES
1. Amancio-Filho, S.T., Sheikhi, S., Dos Santos,
J.F., Bolfarini, C. “Preliminary study on the
microstructure and mechanical properties of
dissimilar friction stir welds in aircraft aluminium
alloys 2024-T351 and 6056-T4”, Journal of
materials processing technology, Vol. 206, pp.
132-142.
2. ASTM E8/E8M – 09. “Standard test methods for
tension testing of metallic materials1”, ASTM
International.
3. Atallah, M.M. and Hanadi G Salem. “Friction stir
welding parameters: a tool for controlling
abnormal grain growth during subsequent heat
treatment”, Materials Science Engineering, Vol.
391, pp.51–59
4. Baeslack III, W.A., Jata, K.V., Lienert, T.J.
“Structure, properties and fracture of friction stir
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456
www.ijtsrd.com | Volume – 2 | Issue – 6 | Sep-Oct 2018
Filho, S.T., Sheikhi, S., Dos Santos,
J.F., Bolfarini, C. “Preliminary study on the
microstructure and mechanical properties of
dissimilar friction stir welds in aircraft aluminium
T4”, Journal of
nology, Vol. 206, pp.
09. “Standard test methods for
tension testing of metallic materials1”, ASTM
Atallah, M.M. and Hanadi G Salem. “Friction stir
welding parameters: a tool for controlling
g subsequent heat
treatment”, Materials Science Engineering, Vol.
Baeslack III, W.A., Jata, K.V., Lienert, T.J.
“Structure, properties and fracture of friction stir
welds in a high-temperature Al
alloy (AA-8009)”, J Mater sc
2951.
5. Bala Srinivasan, P., Dietzel, W., Zettler, R., dos
Santos, J.F., Sivan, V. “Stress corrosion cracking
susceptibility of friction stir welded AA7075
AA6056 dissimilar joint”, Materials Science and
Engineering A, Vol. 392, pp. 292
6. Beathe Heinz., Birgit Skrotzi. “Characterization of
a Friction-Stir Welded Aluminum Alloy 6013”,
Metallurgical and materials transactions B, Vol.
33B, pp. 489-498.
7. Bob Irving. “Scandium Places Aluminum
Welding on a New Plateau”, Welding Journal, 76,
pp. 53-57.
International Journal of Trend in Scientific Research and Development (IJTSRD) ISSN: 2456-6470
Oct 2018 Page: 997
temperature Al-8.5Fe-1.3V– 1.7Si
8009)”, J Mater sci., Vol. 41, pp. 2939–
Bala Srinivasan, P., Dietzel, W., Zettler, R., dos
Santos, J.F., Sivan, V. “Stress corrosion cracking
susceptibility of friction stir welded AA7075–
AA6056 dissimilar joint”, Materials Science and
Engineering A, Vol. 392, pp. 292-300.
Beathe Heinz., Birgit Skrotzi. “Characterization of
Welded Aluminum Alloy 6013”,
Metallurgical and materials transactions B, Vol.
Bob Irving. “Scandium Places Aluminum
Welding on a New Plateau”, Welding Journal, 76,