This document provides a literature review on friction stir welding of similar and dissimilar aluminum alloys. It summarizes 18 research papers on the topic. The review finds that friction stir welding can produce high quality joints in aluminum alloys without defects like porosity or cracking. However, challenges remain in welding dissimilar alloys due to differences in mechanical properties and microstructure. Further research is needed to better understand material flow and optimize welding parameters for dissimilar aluminum alloy joints.
Friction stir welding was performed on aluminum alloy AA6061 reinforced with 6% Al2O3 particles. Testing found that welds produced at 1100 rpm tool rotation had the highest tensile strength, breaking stress, and percentage elongation compared to 1200 rpm. Hardness was also lowest at 1100 rpm. Microstructure analysis showed a homogeneous material flow pattern within the weld nugget. Overall joint efficiency was highest when welding at 1100 rpm tool rotation.
Friction stir welding is used to join aluminum alloy AA6061 reinforced with 6% Al2O3 particles. Tests on welded specimens showed that ultimate tensile strength was highest at a tool rotation speed of 1100 rpm, while breaking stress and elongation were also highest. Hardness was lowest at this speed, resulting in the best overall joint efficiency. Microstructure, mechanical properties, and welding parameters were analyzed to characterize the friction stir welded aluminum metal matrix composite.
This document summarizes a research article from the International Journal of Mechanical Engineering and Technology that studied the microstructure and mechanical properties of mild steel-copper joints created through friction welding. Key findings include:
1) Hardness tests found the weld interface had higher hardness than the base metals, with mild steel hardness increasing towards the heat affected zone and copper increasing slightly at the interface.
2) Tensile testing showed welded joints had lower strength than the base metals, failing in the reaction layer formed at the copper side near the interface.
3) Microstructural analysis found that at high rotational speeds, surface irregularities were smoothed and full bonding occurred at the interface, while low speeds allowed imp
This study investigated the effect of three iron-based hardfacing electrodes - Hard Alloy 400, Hardloy III, and Hardloy V - on the properties of stainless steel when applied using shielded metal arc welding. Single and double layers of each electrode were deposited. Microhardness, wear resistance, and microstructure of the samples were then analyzed. Microhardness was found to increase by 1.7x, 2x, and 2.4x for the three electrodes respectively. Wear resistance improved by 29%, 60%, and 66% respectively. Microstructure analysis revealed that Hardloy V samples had the finest and most uniform grain structure, corresponding to the highest hardness and lowest wear rate. In conclusion, Hardloy V electrode
A Review on Optimization of the Process Parameters in Friction Stir Welding o...IJAEMSJORNAL
This study is describing a simple and systematic methodology for optimizing the Process parameters of friction stir welding (FSW) of (AA6105 and AA6082) aluminium alloy using Taguchi technique. The main focus of this review paper is to discuss FSW principle, process parameter and mechanical properties. The current study focuses on the friction stir welding of wrought aluminium alloys 6082 and aluminium alloy 6105 that are commonly used in the structural and automotive industries. Apart from this paper FSW process has been done on various aluminium alloys but dissimilar friction stir welding of these two materials are not reported in their research. A systematic study has been performed on the joint properties on the dissimilar welding of the selected materials and their relationships between various parameters.
Mechanism of Fracture in Friction Stir Processed Aluminium AlloyDr. Amarjeet Singh
Aluminium alloys are used for important
applications in reducing the weight of the component and
structure particularly associated with transport, marine,
and aerospace fields. Grain refinement by scandium (Sc)
addition can eliminate the casting defects and increase the
resistance to hot tearing for high strength aluminium alloys.
FSP for cast aluminium alloys have been focused and it has
great advantages including solid state microstructural
evolution, altering mechanical properties by optimizing
process parameters. These parameters are tool rotational
speeds (720, and 1000 rpm), traverse speeds (80, and 70
mm/min), and axial compressive force at 15 kN, etc. The
mechanical properties had been evaluated on FSPed
aluminium alloy with different microstructural conditions.
Fracture properties of aluminium alloys are very important
for industrial applications. Tensile and fracture toughness
properties were correlated to microstructural and
fractographic features of the aluminium alloys need to
explore their essential failure mechanisms.
Friction Stir welding is a solid state joining process of using without any filler
material. In this work, two base materials likely Al-MMC’s are used namely Silicon
Carbide and Zirconium di-Boride are used. Hardness Rockwell Value and Tensile
Strength Tests are evaluated to the various tool material respect to Al-ZrB2 and Al-SiC.
Threaded Cylinder Tool made of the materials likely OHNS, HCHCr, H13 are carried
out in the process with D/d Ratio are used. The process is carried out with three different
tool materials and two different base material mainly aluminium reinforced Zirconium
diboride (Al-ZrB2) and Silicon Carbide (Al-SiC). The Micrograph of each four zones for
the tool material and base material is shown. This paper mainly focusing on which the
tool material shows a maximum tensile and hardness value for two base materials.
Friction stir welding was performed on aluminum alloy AA6061 reinforced with 6% Al2O3 particles. Testing found that welds produced at 1100 rpm tool rotation had the highest tensile strength, breaking stress, and percentage elongation compared to 1200 rpm. Hardness was also lowest at 1100 rpm. Microstructure analysis showed a homogeneous material flow pattern within the weld nugget. Overall joint efficiency was highest when welding at 1100 rpm tool rotation.
Friction stir welding is used to join aluminum alloy AA6061 reinforced with 6% Al2O3 particles. Tests on welded specimens showed that ultimate tensile strength was highest at a tool rotation speed of 1100 rpm, while breaking stress and elongation were also highest. Hardness was lowest at this speed, resulting in the best overall joint efficiency. Microstructure, mechanical properties, and welding parameters were analyzed to characterize the friction stir welded aluminum metal matrix composite.
This document summarizes a research article from the International Journal of Mechanical Engineering and Technology that studied the microstructure and mechanical properties of mild steel-copper joints created through friction welding. Key findings include:
1) Hardness tests found the weld interface had higher hardness than the base metals, with mild steel hardness increasing towards the heat affected zone and copper increasing slightly at the interface.
2) Tensile testing showed welded joints had lower strength than the base metals, failing in the reaction layer formed at the copper side near the interface.
3) Microstructural analysis found that at high rotational speeds, surface irregularities were smoothed and full bonding occurred at the interface, while low speeds allowed imp
This study investigated the effect of three iron-based hardfacing electrodes - Hard Alloy 400, Hardloy III, and Hardloy V - on the properties of stainless steel when applied using shielded metal arc welding. Single and double layers of each electrode were deposited. Microhardness, wear resistance, and microstructure of the samples were then analyzed. Microhardness was found to increase by 1.7x, 2x, and 2.4x for the three electrodes respectively. Wear resistance improved by 29%, 60%, and 66% respectively. Microstructure analysis revealed that Hardloy V samples had the finest and most uniform grain structure, corresponding to the highest hardness and lowest wear rate. In conclusion, Hardloy V electrode
A Review on Optimization of the Process Parameters in Friction Stir Welding o...IJAEMSJORNAL
This study is describing a simple and systematic methodology for optimizing the Process parameters of friction stir welding (FSW) of (AA6105 and AA6082) aluminium alloy using Taguchi technique. The main focus of this review paper is to discuss FSW principle, process parameter and mechanical properties. The current study focuses on the friction stir welding of wrought aluminium alloys 6082 and aluminium alloy 6105 that are commonly used in the structural and automotive industries. Apart from this paper FSW process has been done on various aluminium alloys but dissimilar friction stir welding of these two materials are not reported in their research. A systematic study has been performed on the joint properties on the dissimilar welding of the selected materials and their relationships between various parameters.
Mechanism of Fracture in Friction Stir Processed Aluminium AlloyDr. Amarjeet Singh
Aluminium alloys are used for important
applications in reducing the weight of the component and
structure particularly associated with transport, marine,
and aerospace fields. Grain refinement by scandium (Sc)
addition can eliminate the casting defects and increase the
resistance to hot tearing for high strength aluminium alloys.
FSP for cast aluminium alloys have been focused and it has
great advantages including solid state microstructural
evolution, altering mechanical properties by optimizing
process parameters. These parameters are tool rotational
speeds (720, and 1000 rpm), traverse speeds (80, and 70
mm/min), and axial compressive force at 15 kN, etc. The
mechanical properties had been evaluated on FSPed
aluminium alloy with different microstructural conditions.
Fracture properties of aluminium alloys are very important
for industrial applications. Tensile and fracture toughness
properties were correlated to microstructural and
fractographic features of the aluminium alloys need to
explore their essential failure mechanisms.
Friction Stir welding is a solid state joining process of using without any filler
material. In this work, two base materials likely Al-MMC’s are used namely Silicon
Carbide and Zirconium di-Boride are used. Hardness Rockwell Value and Tensile
Strength Tests are evaluated to the various tool material respect to Al-ZrB2 and Al-SiC.
Threaded Cylinder Tool made of the materials likely OHNS, HCHCr, H13 are carried
out in the process with D/d Ratio are used. The process is carried out with three different
tool materials and two different base material mainly aluminium reinforced Zirconium
diboride (Al-ZrB2) and Silicon Carbide (Al-SiC). The Micrograph of each four zones for
the tool material and base material is shown. This paper mainly focusing on which the
tool material shows a maximum tensile and hardness value for two base materials.
Investigation and analysis of metallurgical and mechanical properties of aa11...Alexander Decker
1. The document investigates the mechanical and metallurgical properties of friction stir welded joints of AA1100 aluminum alloy fabricated at different tool rotational speeds and material positions.
2. Tensile tests, microhardness tests, and optical/SEM microscopy of the welds were used to evaluate the mechanical properties and microstructure of the joints.
3. The results showed that joints welded at 1200 rpm had the optimum properties, with smooth weld surfaces and good tensile strength, yield strength, and elongation. Microhardness was also highest at this welding condition.
Optimization of friction stir welding process parameter using taguchi method ...eSAT Journals
Abstract Friction stir welding (FSW) is relatively new solid state joining process. This joining technique is energy efficient, environment friendly and versatile. Welding is a multiinput-output process in which quality of welded joint is depends upon a input parameter. Therefore optimization of input process parameter is required to achieve good quality of welding. There are so many methods of optimization in which Taguchi method and Response surface methodology are selected for optimization of process parameter. In this review the effect of process parameter on welded joint studied and optimizes the parameter by using Taguchi method and Response surface methodology. The study of Friction stir welding of Aluminium alloy and High density polyethylene sheets shows the improvement in welded joint quality by optimization of process parameter. The main process parameters which affect the strength of welded joint is tool rotational speed, welding speed, axial force and tool pin profile. Keywords: Friction stir welding (FSW), Optimization, Taguchi Method Response surface Methodology Prediction models
A study on characterization of Al-18%Si alloy by centrifuge castingdbpublications
Aluminum-silicon alloy are characterized by light weight, good strength –to-weight ratio, ease of fabrication of at reasonable cost, high strength at elevated temperature, good thermal conductivity, excellent castability, good weldability, excellent corrosion and wear resistance property. Thus, these types of alloys are well suited for automotive industries, aerospace structural and military applications. In centrifuge casting solidification rate is faster compared to gravity casting, but still solidification depends on various process parameters like, cooling temperature of molten metal, rotational speed of the die and also wall thickness of die. In centrifuge casting the silicon deposition in aluminum varies from top to bottom. Here Al-Si functionally graded material is used and developed under centrifuge casting. The method used in this work to produce functionally graded material is totally different from other centrifugal casting which helped in producing solid cylindrical parts. This report describes about mechanical characterization of Al-18%Si at different temperature. At 950°C casting shows good ultimate tensile strength and harder metal compared to other casting.
Cutting of hardened steel is a topic of high interest for toda 's industrial production and scientific research.
Machine parts consisting of hardened steel are high peiormance components which are often loaded
near their physical limits. The functional behavior of machined parts is decisively influenced by the fine
finishing process which represents the last step in the process chain and can as well be undertaken by
cutting as grinding. An overview of the mechanisms of chip removal in hard cutting and the thermomechanical
influence of the work area is presented. Furthermore, several models of chip removal in hard
turning are introduced and discussed summarizing the metallurgical fundamentals and giving an overview
on stress and temperature distributions in the work area. Boundary conditions for hard cutting as e.g.
machine tools, cutting materials and others are subject to discussion to determine the achievable
workpiece quality and economic efficiency of hard cutting processes in comparison with grinding.
Study of Pitting Corrosion Behavior of FSW weldments of AA6101- T6 Aluminium ...IJERA Editor
Friction Stir Welding (FSW) is a promising solid state joining process widely used generally for Al alloys,
especially in aerospace, marine and automobile applications. In present work, the microstructure and corrosion
behavior of friction stir welded AA6101 T6 Al alloy is studied. The friction stir welding was carried using
vertical milling machine with different tool rotational speeds and welding speeds. The microstructure at weld
nugget or stir zone (SN), thermo-mechanically affected zone (TMAZ), heat affected zone (HAZ) and base metal
were observed using optical microscopy. The corrosion tests of base alloy and welded joints were carried out in
3.5% NaCl solution at temperature of 30º C. Corrosion rate and emf were determined using cyclic polarization
measurement.
TMT Steel Bar (Saria/Rod) Manufacturing Industry. Production of TMT Rebars (Reinforced Bars), TMT Rods. TMT Steel
TMT bars or Thermo-Mechanically Treated bars are high-strength reinforcement bars having a tough outer core and a soft inner core. Thermo-Mechanically Treated bars or TMT bars are widely used for different construction projects. Made from high strength steel, TMT bars possess several qualities that make them the most preferred material for various construction projects.
With a unique metallurgical process that combines work hardening along with heat-treatment to create robust and high strength bars from low-carbon steel, TMT bars have a great demand.
See more
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https://goo.gl/CK36eB
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International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
PAPER ON WELDABILITY OF H30 ALUMINIUM WITH BS970 MILD STEEL USING FRICTION WE...Journal For Research
Friction welding method is one of the most simple, economical and highly productive method in joining dissimilar materials. It is widely used in the automotive, medical and aerospace industrial applications. The purpose of this present work was to assess the development of solid state juncture of dissimilar materials of H30 aluminum and BS970 mild steel. The joints were obtained by Friction Welding (FW) process, which combines the heat generated from friction between two surfaces. The results were analyzed by means of tensile, Rockwell hardness test and metallographic tests. Solid state welding processes are characterized by the absence of melting and the formation of narrow heat affected zone (HAZ). The metallurgical properties are usually excellent and most of the processes can be mechanized or automated to be used as high production rate processes. The FW proves to be a great method for obtaining junctures between dissimilar materials which is not possible by fusion welding process.
Evolution of automobile production has been driven by competitive materials. Light-weight alloys are
continuously developed as most sustainable for automotive sector. Aluminum is being used as a successful
material in automotive applications due to its low weight, higher strength, good corrosion resistance and
formability to suit different design requirements. Since aluminium has the potential to be used as replacement
of the current automotive materials like steel and cast iron, its demand has increased greatly. In a further
development aluminium metal matrix composites (MMCs) were developed and these have improved wear
resistance, high fatigue strength and better thermal stability, as compared with those of aluminum. In
automobile sector, wear is a major problem, specifically in engineering assemblies and materials used for this
purpose should have good tribological properties. To this effect Al MMCs have attracted significant attraction
since they have improved wear resistance. Metal matrix composites are usually produced with secondary
particles in the form of either continuous or discontinuous fiber or particles. From the viewpoint of good
mechanical properties aluminium matrix is generally reinforced by oxide or carbide, nitride or boride
ceramics (like Al2O3, SiC, Si3N4, TiC, TiB2. Reinforcement of the matrix with only one of these
reinforcements may not yield desired properties and the matrix may need to be augmented with other
reinforcements also. Graphite and SiC are the reinforcements used widely in automotive industries to achieve
better mechanical and tribological properties and dampen the vibrations with less operational costs.
Aluminum metal matrix composite can be produced by various methods including powder metallurgy,
conventional casting technology, etc. Among the casting methods semisolid processing of composites yields
better mechanical strength. This review deals with various manufacturing methods of metal matrix composites
processing and insight on semisolid processing and its process parameters.
Published paper october 2016 former phd scholar vit chennai dr t rv dr nara a...Dr T R Vijayaram
This document summarizes research on aluminum matrix hybrid composites produced via semisolid processing and the associated process parameters. It discusses how hybrid composites can yield desirable properties by combining two or more secondary particles in the aluminum matrix. Semisolid processing of composites involves mechanical stirring of an aluminum melt containing ceramic reinforcements in a semisolid state, allowing for uniform distribution of particles and porous-free castings with improved mechanical properties. Key processing parameters that influence composite properties include stirring speed, particle size and shape, melting temperature, and wettability between the aluminum melt and ceramic particles. Ultrasonic vibration application during semisolid processing can further improve particle distribution and composite characteristics.
Dry machining of aluminum for proper selection of cutting tool tool performa...Dillip Mohanta
This document summarizes an experiment that tested five different cutting tools for dry machining of aluminum: WC SPUN grade, WC SPGN grade, WC + PVD TiN coating, WC + Ti(C,N) + Al2O3 PVD multilayer coating, and PCD. The experiment varied cutting speed, feed rate, and kept depth of cut constant. It measured surface roughness, tool wear, and analyzed chip deformation and tool microstructure. The results showed that the PCD tool provided the best results in terms of surface roughness, tool wear, and smoother chip underface compared to the other tools tested.
IRJET- Optimization and Characterization of Dissimilar Welding of AA5083 & AA...IRJET Journal
The document summarizes an experiment that optimized friction stir welding parameters for dissimilar aluminum alloys AA5083 and AA6082. Taguchi methods were used to design experiments varying tool rotation speed, travel speed, and tilt angle. Tensile tests on the welded joints found the highest strength of 217 MPa at 700 rpm, 110 mm/min travel speed, and 2 degree tilt angle. Microhardness tests and microscopic analysis of the welded joints' microstructure were also conducted to characterize the properties and quality of the dissimilar alloy welds under different welding parameters.
Elevated Temperature Uniaxial Mechanical Compression Examination and Hot Roll...IJERA Editor
Steel material may be considered one of the most significant materials in different mechanical engineering applications because it is the foremost component in the different mechanical industries and structure of buildings . Boron steels are suitable for varied applications , Diverse elements of metals have been alloyed to steel to attain definite properties for definite uses. . For example, molybdenum can typically be used as such an alloy to ensure high strength value for low steels alloys to improve its properties, such as the mechanical properties. These grades are useful to variety of industries since improving the mechanical properties of steel will increase its performance In this paper, the Gleeble, hardness test, including the microstructure before and after hot stamping, will be discussed; where the stress-strain must be defined in a specific temperature range. This paper also aims to show accurate TTT and CCT diagrams for three grades that have been studied, which are steel 50, steel 52, and steel 53.
IRJET- Optimization of Fricton Stir Welding Parameters for Dissimilar Alumini...IRJET Journal
This document summarizes an experiment that optimized friction stir welding parameters for dissimilar aluminum alloys AA7075 and AA2014. Experiments were conducted with varying tool rotation speeds, feed rates, and axial forces. Hardness and impact tests were performed on the welded samples. The second test plate welded at 900 RPM, 18 mm/min feed rate, and 7 KN axial force showed the best mechanical properties based on macroscopic examination, with a hardness of 31 and impact value of 4. Overall, the study investigated the effect of friction stir welding parameters on the mechanical properties of welds between AA7075 and AA2014 aluminum alloys.
4 ijcmes oct-2016-1-correlations on dissimilar materials by friction stir wel...IJCMESJOURNAL
Recently many reports on Friction Stir Welding (FSW) of various dissimilar systems such as Aluminium to Copper and Aluminium to Brass been reported. FSW of Aluminium, Copper and Brass has captured important attention from manufacturing industries, such as Shipbuilding, Automotive, Railway and Aircraft production. Brass materials are widely used as engineering materials in industry because of their high electrical and thermal conductivity, high strength, and high corrosion resistance. Copper and its alloys are widely used in industrial applications due to their excellent electrical & thermal conductivities, good strength, corrosion & fatigue resistance. The aim of present study was analogy of the microstructures and mechanical properties of friction stir welded joint of Aluminium to Copper and Aluminium to Brass plates in 4mm thickness.
Wear and corrosion studies on ferritic stainless steel (ss 409 m)eSAT Journals
Abstract The wear and corrosion behavior of SS 409M have been evaluated and compared with Mild steel ferritic stainless steel SS 430, and austenitic stainless steel SS 304. The SS 409M is a utility grade ferritic stainless steel, and has a very low Ni percentage less than 0.30%. Annealed SS 409M contains ferrite and low percentage of tempered martensite whereas normalized SS 409M has low ferrite and higher percentage of tempered martensite. The manufacturing cost for this steel is low as compared to other grades of stainless steel but it has high strength with excellent corrosion resistance, abrasion resistance and can be easily fabricated. Thus SS 409M has been found to be a suitable material for replacing mild steel in structural applications. SS 409M has also got good wear resistance and this can be considered as an alternate material for mild steel in the railway wagons, track armor, and chemical tanks. The dry wear test has been carried out using the pin on disc machine for all the specimens. The results show that 409M has higher wear resistance as compared to mild steel and SS 430. The corrosion test has been carried out using the potentiostat for SS 409M both in annealed and in the normalized condition and the results are compared with SS 430 and SS 304. SS 304 and SS 430 stainless steels show excellent corrosion resistance while SS 409M both in annealed and in normalized condition reveal higher corrosion resistance than mild steel. Results are discussed with published work on these steels. Keywords: SS 409M, SS 409M, SS 430, SS 304
IRJET- Optimization of Industrial TrussIRJET Journal
1. The document analyzes different types of industrial trusses through modeling and analysis in STAAD Pro to determine the optimal design with minimum weight and cost.
2. Six types of trusses were modeled with varying slopes and three section types, and analyzed under various load combinations.
3. The results found that for slopes of 24° and 28°, the A-type truss with pipe section had the least weight and was most economical. For other truss types and slopes, the pipe section also performed best in reducing weight.
4. In conclusion, analyzing variations in truss type, slope, and section is important for optimization, and the study found the A-type truss with
A STUDY OF EFFECT PROCESS PARAMETERS ON TENSILE STRENGTH IAEME Publication
This document discusses a study on the effect of process parameters on tensile strength of friction stir welded AA6061 aluminum alloy joints. Friction stir welding is a solid-state joining process that uses a non-consumable rotating tool to join materials together without melting. The study examines parameters like rotational speed, traverse speed, axial force, shoulder diameter, and tilt angle. Tensile test samples were prepared and tensile strength values were measured for different parameter combinations based on a Taguchi design of experiments. Optimum tensile strength was found at 1000 rpm speed, 14 mm/min feed rate, 7 kN axial force, 17 mm shoulder diameter, and 3° tilt angle for cylindrical tools and 710 rpm speed,
A STUDY OF EFFECT PROCESS PARAMETERS ON TENSILE STRENGTHIAEME Publication
Friction stir welding (FSW) is a comparatively innovative solids-state joining
process. This joining mechanism is very energy efficient, environment friendly and
multitalented. The aim of this paper is improvement an affiliation between in the welding
parameters and mechanical properties of the AA6061T-6 type of aluminum alloy using
the friction stir welding mechanism .The effects of the various processing parameters
they are, tool rotational speed, traverse speed, axial force and geometry play tool they
are play an important role on the quality of welded joining. The FSW joints mechanism
have advanced tensile strength to the heaviness ratio. The present work of this paper is
done to think about the impact of the contribution parameters on the tensile strength.
The tensile welding parameters mainly influenced by the following variables they are
weld speed, feed, and tilt angle. The parameters are take these of the examiner attributes
they are the attributes are rotational speed, weld speed, axial force, shoulder diameter
and tilt angle. From this examination it is found that the square tool pin profile
producers are mechanically sound defect free welds compare to the tool to pin effects
This document summarizes a study on the effect of post-weld heat treatments on the tensile properties of gas tungsten arc welded AA2519-T87 aluminum alloy joints. Gas tungsten arc welding was used to join AA2519-T87 aluminum alloy plates. As-welded joints and joints subjected to artificial aging alone or solution heat treatment followed by artificial aging were evaluated. Microhardness and tensile properties including yield strength, tensile strength, and elongation were measured and compared. Solution heat treatment followed by artificial aging resulted in an 11.8% increase in tensile strength and improved joint efficiency from 66% to 74%, indicating post-weld heat treatments can effectively restore properties lost during
Investigation and analysis of metallurgical and mechanical properties of aa11...Alexander Decker
1. The document investigates the mechanical and metallurgical properties of friction stir welded joints of AA1100 aluminum alloy fabricated at different tool rotational speeds and material positions.
2. Tensile tests, microhardness tests, and optical/SEM microscopy of the welds were used to evaluate the mechanical properties and microstructure of the joints.
3. The results showed that joints welded at 1200 rpm had the optimum properties, with smooth weld surfaces and good tensile strength, yield strength, and elongation. Microhardness was also highest at this welding condition.
Optimization of friction stir welding process parameter using taguchi method ...eSAT Journals
Abstract Friction stir welding (FSW) is relatively new solid state joining process. This joining technique is energy efficient, environment friendly and versatile. Welding is a multiinput-output process in which quality of welded joint is depends upon a input parameter. Therefore optimization of input process parameter is required to achieve good quality of welding. There are so many methods of optimization in which Taguchi method and Response surface methodology are selected for optimization of process parameter. In this review the effect of process parameter on welded joint studied and optimizes the parameter by using Taguchi method and Response surface methodology. The study of Friction stir welding of Aluminium alloy and High density polyethylene sheets shows the improvement in welded joint quality by optimization of process parameter. The main process parameters which affect the strength of welded joint is tool rotational speed, welding speed, axial force and tool pin profile. Keywords: Friction stir welding (FSW), Optimization, Taguchi Method Response surface Methodology Prediction models
A study on characterization of Al-18%Si alloy by centrifuge castingdbpublications
Aluminum-silicon alloy are characterized by light weight, good strength –to-weight ratio, ease of fabrication of at reasonable cost, high strength at elevated temperature, good thermal conductivity, excellent castability, good weldability, excellent corrosion and wear resistance property. Thus, these types of alloys are well suited for automotive industries, aerospace structural and military applications. In centrifuge casting solidification rate is faster compared to gravity casting, but still solidification depends on various process parameters like, cooling temperature of molten metal, rotational speed of the die and also wall thickness of die. In centrifuge casting the silicon deposition in aluminum varies from top to bottom. Here Al-Si functionally graded material is used and developed under centrifuge casting. The method used in this work to produce functionally graded material is totally different from other centrifugal casting which helped in producing solid cylindrical parts. This report describes about mechanical characterization of Al-18%Si at different temperature. At 950°C casting shows good ultimate tensile strength and harder metal compared to other casting.
Cutting of hardened steel is a topic of high interest for toda 's industrial production and scientific research.
Machine parts consisting of hardened steel are high peiormance components which are often loaded
near their physical limits. The functional behavior of machined parts is decisively influenced by the fine
finishing process which represents the last step in the process chain and can as well be undertaken by
cutting as grinding. An overview of the mechanisms of chip removal in hard cutting and the thermomechanical
influence of the work area is presented. Furthermore, several models of chip removal in hard
turning are introduced and discussed summarizing the metallurgical fundamentals and giving an overview
on stress and temperature distributions in the work area. Boundary conditions for hard cutting as e.g.
machine tools, cutting materials and others are subject to discussion to determine the achievable
workpiece quality and economic efficiency of hard cutting processes in comparison with grinding.
Study of Pitting Corrosion Behavior of FSW weldments of AA6101- T6 Aluminium ...IJERA Editor
Friction Stir Welding (FSW) is a promising solid state joining process widely used generally for Al alloys,
especially in aerospace, marine and automobile applications. In present work, the microstructure and corrosion
behavior of friction stir welded AA6101 T6 Al alloy is studied. The friction stir welding was carried using
vertical milling machine with different tool rotational speeds and welding speeds. The microstructure at weld
nugget or stir zone (SN), thermo-mechanically affected zone (TMAZ), heat affected zone (HAZ) and base metal
were observed using optical microscopy. The corrosion tests of base alloy and welded joints were carried out in
3.5% NaCl solution at temperature of 30º C. Corrosion rate and emf were determined using cyclic polarization
measurement.
TMT Steel Bar (Saria/Rod) Manufacturing Industry. Production of TMT Rebars (Reinforced Bars), TMT Rods. TMT Steel
TMT bars or Thermo-Mechanically Treated bars are high-strength reinforcement bars having a tough outer core and a soft inner core. Thermo-Mechanically Treated bars or TMT bars are widely used for different construction projects. Made from high strength steel, TMT bars possess several qualities that make them the most preferred material for various construction projects.
With a unique metallurgical process that combines work hardening along with heat-treatment to create robust and high strength bars from low-carbon steel, TMT bars have a great demand.
See more
https://goo.gl/DEzMSW
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International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
PAPER ON WELDABILITY OF H30 ALUMINIUM WITH BS970 MILD STEEL USING FRICTION WE...Journal For Research
Friction welding method is one of the most simple, economical and highly productive method in joining dissimilar materials. It is widely used in the automotive, medical and aerospace industrial applications. The purpose of this present work was to assess the development of solid state juncture of dissimilar materials of H30 aluminum and BS970 mild steel. The joints were obtained by Friction Welding (FW) process, which combines the heat generated from friction between two surfaces. The results were analyzed by means of tensile, Rockwell hardness test and metallographic tests. Solid state welding processes are characterized by the absence of melting and the formation of narrow heat affected zone (HAZ). The metallurgical properties are usually excellent and most of the processes can be mechanized or automated to be used as high production rate processes. The FW proves to be a great method for obtaining junctures between dissimilar materials which is not possible by fusion welding process.
Evolution of automobile production has been driven by competitive materials. Light-weight alloys are
continuously developed as most sustainable for automotive sector. Aluminum is being used as a successful
material in automotive applications due to its low weight, higher strength, good corrosion resistance and
formability to suit different design requirements. Since aluminium has the potential to be used as replacement
of the current automotive materials like steel and cast iron, its demand has increased greatly. In a further
development aluminium metal matrix composites (MMCs) were developed and these have improved wear
resistance, high fatigue strength and better thermal stability, as compared with those of aluminum. In
automobile sector, wear is a major problem, specifically in engineering assemblies and materials used for this
purpose should have good tribological properties. To this effect Al MMCs have attracted significant attraction
since they have improved wear resistance. Metal matrix composites are usually produced with secondary
particles in the form of either continuous or discontinuous fiber or particles. From the viewpoint of good
mechanical properties aluminium matrix is generally reinforced by oxide or carbide, nitride or boride
ceramics (like Al2O3, SiC, Si3N4, TiC, TiB2. Reinforcement of the matrix with only one of these
reinforcements may not yield desired properties and the matrix may need to be augmented with other
reinforcements also. Graphite and SiC are the reinforcements used widely in automotive industries to achieve
better mechanical and tribological properties and dampen the vibrations with less operational costs.
Aluminum metal matrix composite can be produced by various methods including powder metallurgy,
conventional casting technology, etc. Among the casting methods semisolid processing of composites yields
better mechanical strength. This review deals with various manufacturing methods of metal matrix composites
processing and insight on semisolid processing and its process parameters.
Published paper october 2016 former phd scholar vit chennai dr t rv dr nara a...Dr T R Vijayaram
This document summarizes research on aluminum matrix hybrid composites produced via semisolid processing and the associated process parameters. It discusses how hybrid composites can yield desirable properties by combining two or more secondary particles in the aluminum matrix. Semisolid processing of composites involves mechanical stirring of an aluminum melt containing ceramic reinforcements in a semisolid state, allowing for uniform distribution of particles and porous-free castings with improved mechanical properties. Key processing parameters that influence composite properties include stirring speed, particle size and shape, melting temperature, and wettability between the aluminum melt and ceramic particles. Ultrasonic vibration application during semisolid processing can further improve particle distribution and composite characteristics.
Dry machining of aluminum for proper selection of cutting tool tool performa...Dillip Mohanta
This document summarizes an experiment that tested five different cutting tools for dry machining of aluminum: WC SPUN grade, WC SPGN grade, WC + PVD TiN coating, WC + Ti(C,N) + Al2O3 PVD multilayer coating, and PCD. The experiment varied cutting speed, feed rate, and kept depth of cut constant. It measured surface roughness, tool wear, and analyzed chip deformation and tool microstructure. The results showed that the PCD tool provided the best results in terms of surface roughness, tool wear, and smoother chip underface compared to the other tools tested.
IRJET- Optimization and Characterization of Dissimilar Welding of AA5083 & AA...IRJET Journal
The document summarizes an experiment that optimized friction stir welding parameters for dissimilar aluminum alloys AA5083 and AA6082. Taguchi methods were used to design experiments varying tool rotation speed, travel speed, and tilt angle. Tensile tests on the welded joints found the highest strength of 217 MPa at 700 rpm, 110 mm/min travel speed, and 2 degree tilt angle. Microhardness tests and microscopic analysis of the welded joints' microstructure were also conducted to characterize the properties and quality of the dissimilar alloy welds under different welding parameters.
Elevated Temperature Uniaxial Mechanical Compression Examination and Hot Roll...IJERA Editor
Steel material may be considered one of the most significant materials in different mechanical engineering applications because it is the foremost component in the different mechanical industries and structure of buildings . Boron steels are suitable for varied applications , Diverse elements of metals have been alloyed to steel to attain definite properties for definite uses. . For example, molybdenum can typically be used as such an alloy to ensure high strength value for low steels alloys to improve its properties, such as the mechanical properties. These grades are useful to variety of industries since improving the mechanical properties of steel will increase its performance In this paper, the Gleeble, hardness test, including the microstructure before and after hot stamping, will be discussed; where the stress-strain must be defined in a specific temperature range. This paper also aims to show accurate TTT and CCT diagrams for three grades that have been studied, which are steel 50, steel 52, and steel 53.
IRJET- Optimization of Fricton Stir Welding Parameters for Dissimilar Alumini...IRJET Journal
This document summarizes an experiment that optimized friction stir welding parameters for dissimilar aluminum alloys AA7075 and AA2014. Experiments were conducted with varying tool rotation speeds, feed rates, and axial forces. Hardness and impact tests were performed on the welded samples. The second test plate welded at 900 RPM, 18 mm/min feed rate, and 7 KN axial force showed the best mechanical properties based on macroscopic examination, with a hardness of 31 and impact value of 4. Overall, the study investigated the effect of friction stir welding parameters on the mechanical properties of welds between AA7075 and AA2014 aluminum alloys.
4 ijcmes oct-2016-1-correlations on dissimilar materials by friction stir wel...IJCMESJOURNAL
Recently many reports on Friction Stir Welding (FSW) of various dissimilar systems such as Aluminium to Copper and Aluminium to Brass been reported. FSW of Aluminium, Copper and Brass has captured important attention from manufacturing industries, such as Shipbuilding, Automotive, Railway and Aircraft production. Brass materials are widely used as engineering materials in industry because of their high electrical and thermal conductivity, high strength, and high corrosion resistance. Copper and its alloys are widely used in industrial applications due to their excellent electrical & thermal conductivities, good strength, corrosion & fatigue resistance. The aim of present study was analogy of the microstructures and mechanical properties of friction stir welded joint of Aluminium to Copper and Aluminium to Brass plates in 4mm thickness.
Wear and corrosion studies on ferritic stainless steel (ss 409 m)eSAT Journals
Abstract The wear and corrosion behavior of SS 409M have been evaluated and compared with Mild steel ferritic stainless steel SS 430, and austenitic stainless steel SS 304. The SS 409M is a utility grade ferritic stainless steel, and has a very low Ni percentage less than 0.30%. Annealed SS 409M contains ferrite and low percentage of tempered martensite whereas normalized SS 409M has low ferrite and higher percentage of tempered martensite. The manufacturing cost for this steel is low as compared to other grades of stainless steel but it has high strength with excellent corrosion resistance, abrasion resistance and can be easily fabricated. Thus SS 409M has been found to be a suitable material for replacing mild steel in structural applications. SS 409M has also got good wear resistance and this can be considered as an alternate material for mild steel in the railway wagons, track armor, and chemical tanks. The dry wear test has been carried out using the pin on disc machine for all the specimens. The results show that 409M has higher wear resistance as compared to mild steel and SS 430. The corrosion test has been carried out using the potentiostat for SS 409M both in annealed and in the normalized condition and the results are compared with SS 430 and SS 304. SS 304 and SS 430 stainless steels show excellent corrosion resistance while SS 409M both in annealed and in normalized condition reveal higher corrosion resistance than mild steel. Results are discussed with published work on these steels. Keywords: SS 409M, SS 409M, SS 430, SS 304
IRJET- Optimization of Industrial TrussIRJET Journal
1. The document analyzes different types of industrial trusses through modeling and analysis in STAAD Pro to determine the optimal design with minimum weight and cost.
2. Six types of trusses were modeled with varying slopes and three section types, and analyzed under various load combinations.
3. The results found that for slopes of 24° and 28°, the A-type truss with pipe section had the least weight and was most economical. For other truss types and slopes, the pipe section also performed best in reducing weight.
4. In conclusion, analyzing variations in truss type, slope, and section is important for optimization, and the study found the A-type truss with
A STUDY OF EFFECT PROCESS PARAMETERS ON TENSILE STRENGTH IAEME Publication
This document discusses a study on the effect of process parameters on tensile strength of friction stir welded AA6061 aluminum alloy joints. Friction stir welding is a solid-state joining process that uses a non-consumable rotating tool to join materials together without melting. The study examines parameters like rotational speed, traverse speed, axial force, shoulder diameter, and tilt angle. Tensile test samples were prepared and tensile strength values were measured for different parameter combinations based on a Taguchi design of experiments. Optimum tensile strength was found at 1000 rpm speed, 14 mm/min feed rate, 7 kN axial force, 17 mm shoulder diameter, and 3° tilt angle for cylindrical tools and 710 rpm speed,
A STUDY OF EFFECT PROCESS PARAMETERS ON TENSILE STRENGTHIAEME Publication
Friction stir welding (FSW) is a comparatively innovative solids-state joining
process. This joining mechanism is very energy efficient, environment friendly and
multitalented. The aim of this paper is improvement an affiliation between in the welding
parameters and mechanical properties of the AA6061T-6 type of aluminum alloy using
the friction stir welding mechanism .The effects of the various processing parameters
they are, tool rotational speed, traverse speed, axial force and geometry play tool they
are play an important role on the quality of welded joining. The FSW joints mechanism
have advanced tensile strength to the heaviness ratio. The present work of this paper is
done to think about the impact of the contribution parameters on the tensile strength.
The tensile welding parameters mainly influenced by the following variables they are
weld speed, feed, and tilt angle. The parameters are take these of the examiner attributes
they are the attributes are rotational speed, weld speed, axial force, shoulder diameter
and tilt angle. From this examination it is found that the square tool pin profile
producers are mechanically sound defect free welds compare to the tool to pin effects
This document summarizes a study on the effect of post-weld heat treatments on the tensile properties of gas tungsten arc welded AA2519-T87 aluminum alloy joints. Gas tungsten arc welding was used to join AA2519-T87 aluminum alloy plates. As-welded joints and joints subjected to artificial aging alone or solution heat treatment followed by artificial aging were evaluated. Microhardness and tensile properties including yield strength, tensile strength, and elongation were measured and compared. Solution heat treatment followed by artificial aging resulted in an 11.8% increase in tensile strength and improved joint efficiency from 66% to 74%, indicating post-weld heat treatments can effectively restore properties lost during
Effect of Volume Fraction (Al2O3) on Tensile Strength of Aluminium 6061 by Va...IRJET Journal
This document reviews the effect of adding aluminum oxide (Al2O3) particles on the tensile strength of aluminum 6061 composites produced via stir casting. Stir casting is described as a common and cost-effective method for fabricating metal matrix composites. The key process parameters of stir casting that influence composite properties are identified as stirrer design and speed, temperature, time, and reinforcement concentration. Literature on aluminum metal matrix composites reinforced with Al2O3 and silicon carbide is summarized, finding that strength and hardness generally increase with higher reinforcement content, while ductility decreases. Adding Al2O3 to aluminum 6061 via stir casting was shown to improve tensile strength over the unreinforced alloy. The document concludes
Fabrication and Characterisation of Hybrid Aluminium Metal Matrix Composite...IRJET Journal
This document summarizes research on fabricating and characterizing a hybrid aluminum metal matrix composite with welding slag and flux using stir casting technique. Specifically, it reinforced aluminum alloy 6061 with 5%, 7%, and 9% welding slag and 4% magnesium oxide flux. Hardness testing found that hardness increased with higher reinforcement content. The stir casting method produced uniform reinforcement distribution. This research demonstrated improved mechanical properties from the composite fabrication process.
IRJET- Preparation & Mechanical Characterization of Aluminium 6063 Metal Matr...IRJET Journal
This document summarizes research on preparing and characterizing the mechanical properties of an aluminum 6063 metal matrix composite reinforced with silicon carbide and graphite particles. The composite was fabricated using stir casting and tested at different reinforcement weight percentages. Testing showed that ultimate tensile strength, hardness, compression strength, and toughness increased with higher reinforcement content, while ductility decreased. This composite material could potentially be used in automotive and aerospace applications due to its improved mechanical properties and light weight.
Effect of Process Parameters and Nano particles on Friction Stir Welding of D...IRJET Journal
This document summarizes research on friction stir welding (FSW) of dissimilar aluminum alloys. It discusses how FSW is used to join materials like aluminum and challenges in joining dissimilar materials, such as formation of brittle intermetallic compounds with different properties. The document reviews studies on FSW of aluminum alloys with additions of nanoparticles like silicon carbide to improve mechanical properties. It also examines work on using probeless tools to repair defects in friction stir welds of aluminum and copper.
IRJET- Optimization of Fricton Stir Welding Parameters for Dissimilar Alumini...IRJET Journal
This document summarizes an experiment that optimized friction stir welding parameters for dissimilar aluminum alloys AA7075 and AA2014. Experiments were conducted with various tool rotation speeds, feed rates, and axial forces. Hardness and impact tests were performed on the welded samples. The second test plate welded at 900 RPM, 18 mm/min feed rate, and 7 KN axial force showed the best mechanical properties based on macroscopic examination. In conclusion, proper selection of friction stir welding parameters is necessary to control weld distortion and increase productivity.
Study and Analysis of the Fatigue Behaviour of Friction Stir Butt Welded Dis...IRJET Journal
1) The study analyzed the tensile strength and fatigue behavior of friction stir butt welded dissimilar aluminum alloys AA6082 and AA5754.
2) Fatigue tests showed the dissimilar welds had lower tensile strength and fatigue strength than the base materials AA6082 and AA5754, but comparable strength to AA5754.
3) The fatigue performance of the AA6082 and AA5754 friction stir welded joints showed a shallower stress-life (S-N) curve with improved fatigue performance at lower stress ranges.
IRJET- Friction Stir Welding in Circular PipesIRJET Journal
This document discusses friction stir welding of circular aluminum pipes. Friction stir welding is a solid-state joining technique that uses a rotating tool to plastically deform and join two abutting metal workpieces without melting them. The document examines the effects of tool rotation speed, tool geometry, and process parameters on the resulting weld strength and microstructure. Tensile strength, hardness, and microstructure of friction stir welded aluminum alloy joints are evaluated to determine the optimal welding parameters and conditions. Friction stir welding shows potential for joining pipes in industries such as oil and gas.
This document summarizes a study that investigated the mechanical and metallurgical properties of friction stir welded AA1100 aluminum alloy joints. Different welding parameters were tested, including tool rotation speed (800-1400 rpm) and material positioning (advancing vs. retreating side). Microhardness, tensile, and fracture surface tests were used to evaluate the mechanical properties. Optical and SEM microscopy were used to analyze the microstructural evolution. The goal was to understand how processing parameters affect properties and defect development in similar AA1100 alloy joints.
IRJET- Friction Stir Welding of Magnesium Alloy: A Review of Experimental Fin...IRJET Journal
This document summarizes research on friction stir welding (FSW) of magnesium alloys. It discusses how FSW is a solid-state welding technique that produces high joint strength with low distortion. FSW can weld most aluminum and magnesium alloys. The document reviews experimental investigations of FSW parameters and properties for AZ31B magnesium alloy welds. It analyzes the microstructure and mechanical properties of FSW magnesium alloy joints and the relationship between welding parameters and properties.
Optimization of Process Parameters of Friction Stir Welding for Similar He-30...IRJET Journal
This document discusses optimization of process parameters for friction stir welding of similar HE-30 aluminium alloy. It begins with an abstract that describes the friction stir welding process and the objectives of using Taguchi methods to optimize welding parameters to achieve high tensile strength. It then provides background on friction stir welding, describing how it is a solid-state welding process that uses a rotating tool to plasticize materials without melting. The document discusses how process parameters like rotational speed, travel speed, and tool geometry can affect joint quality and properties. It aims to use an experimental design and analysis approach to determine the optimum welding conditions for high tensile strength when joining HE-30 aluminium alloy.
Study on Gas Metal Arc Welding in S235 SteelIRJET Journal
The document studies gas metal arc welding (GMAW) of S235 high-strength steel. Samples of S235 steel were butt welded using GMAW with varying parameters like current, voltage, welding speed, and wire feed. The welded samples were tested for tensile strength, yield strength, hardness, and microstructure. The results showed that sample 3 with 21.9V current, 170A, and 70mm/min welding speed achieved the highest tensile strength of 560MPa and yield strength of 488MPa. Sample 5 with 21.3V, 150A, and 60mm/min achieved the highest hardness of 87. Microstructural analysis found samples 3 and 5 had the best grain structure
Ammc's fabricated by friction stir processSelf-employed
The document discusses friction stir processing of aluminum metal matrix composites. It begins with an introduction to friction stir processing, describing how it uses a non-consumable tool to plastically deform metal and create a fine-grained microstructure without melting. The objectives and literature review on aluminum metal matrix composites are then summarized. Details are provided on the friction stir processing technique, selection of AA5083-H111 aluminum alloy, its properties and applications.
Preparation and Characterization of Aluminium Metal Matrix Composite by using...IRJET Journal
1. The document describes the preparation and characterization of an aluminium metal matrix composite reinforced with welding slag using stir casting technique. Composites with 5%, 7%, and 9% weight fractions of welding slag particles were produced.
2. Hardness testing found that the hardness increased with increasing weight fraction of welding slag reinforcement. The unreinforced Al6061 alloy had a hardness of 95 BHN while the composite with 9% welding slag particles achieved a hardness of 96.9 BHN.
3. The study demonstrated that welding slag particles can effectively improve the hardness of an aluminium metal matrix composite when incorporated using stir casting, indicating potential applications where increased strength is required.
Ahmed ibrahim razooqi -- study the microstructure and mechanical properties ...ahmed Ibrahim
Ahmed Ibrahim Razooqi ---
Study the microstructure and mechanical properties of dissimilar friction stir spot welding of carbon steel 1006 to aluminum alloy aa2024-t3.
Friction stir spot welding-FSSW has been suggested as effectual process to welding difficult materials such as dissimilar materials and
thin sheet of metal alloys. In this study, using dissimilar materials were welded carbon steel-1006 on upper plate and aluminum alloy
AA2024-T3 on lower plate. Macrostructure, micro-structural analysis and mechanical properties of the joints are done. The effect of
penetration depth, dwell time and spindle speed on tensile shear load are investigated with invariable of other parameter during welding
process. The maximum tensile shear load (3.31KN) was occurred when using 0.4mm of penetration depth, 10 sec of dwell time and 1400
rpm of spindle speed. Also, two type of failure shape was observed interfacial fracture of carbon steel sheet and pull -out fracture of
AA2024-T3 sheet.
Friction Stir.Welding is an advance metal joining process: A ReviewIJERA Editor
The friction stir welding is recently developed solid state welding process which overcome the problem
associated with fusion welding technology. The properties achieved by friction stir welding is better than that
achieve by fusion welding technique It has been invented as a solid-state joining technique and initially applied
to aluminum alloys. FSW is used to replace rivets joints in the aeronautical industry. Recently the aircraft and
military industries widely have been using aluminum alloys particularly because of their fine strength to weight
ratio. However in compare with steels they represent welding difficulties and also lower ductility. In last years it
has been observed that Friction Stir Welding (FSW) method represents better microstructure and mechanical
properties than conventional methods in welding aluminum alloys. It has been widely investigated for mostly
low melting materials, such as Al, Mg and Cu alloys. Aluminum is the most usable material in engineering
application and a lot of improvement is needed in the area of its welding. The latest works on friction stir
welding of aluminum have been directed towards improving the quality of weld, reducing defects and applying
the process of FSW to aluminum for specific applications. This joining technique is energy efficient,
environment friendly, and versatile. In particular, it can be used to join high-strength aerospace aluminum alloys
and other metallic alloys that are hard to weld by conventional fusion welding. FSW is considered to be the
most significant development in metal joining in a last decade. The FSW of Aluminums and its alloys has been
commercialized; and recent interest is focused on joining dissimilar materials. However, in order to
commercialize the process, research studies are required to characterize and establish proper process parameters
for FSW. This paper summarizes the trends and advances of this welding processes in the field of welding.
Future aspects of the study are also discussed.
Effect Of Process Parameters On Mechanical Properties Of Friction Stir.Welded...IJERA Editor
Friction Stir Welding (FSW) is an advance joining process for different similar and dissimilar materials. It is
commonly used for joining of Aluminum alloys. However it is necessary to overcome some challenges for its
wide-spread uses. Tool design and the selection of process parameters are critical issues in the usage of this
process. This study focuses on the process parameters that is required for producing effective friction stir
welding of two similar aluminum alloys (AA6101T6 to AA6101T6) and dissimilar Aluminum alloys
(AA6101T6 alloy to AA6351T6) . Three different tool diameters such as 20 mm, 25 mm and 30 mm with three
different tool rotational speeds such as 600 rpm, 800 rpm and 1200 rpm have been used to weld the joints. The
welded samples were tested for mechanical properties as well as microstructure. It was observed that 30 mm
tool gives better weld quality for friction stir welding of similar aluminum alloy but 25 mm tool with 1200 rpm
rotational speed gave satisfactory weld quality for friction stir welding of dissimilar aluminum alloys. It is one
of the important welding process that can adopted for welding of aluminum alloys with excellent mechanical
properties. The results were confirmed by further experiments.
Performance of Armor Steel Gas Metal Arc Welded JointsIRJET Journal
This document discusses the performance of armor steel gas metal arc welded joints. It investigates welding Armox 500 T armor steel using the gas metal arc welding process with two different filler metals and joint configurations. The goal is to determine if the welded joints meet required tensile strength and absorbed energy standards. Results show that both single V-joint and single bevel joint configurations passed requirements, whether using carbon steel or austenitic stainless steel filler wire. Dilution was observed in single V joints and increased in single bevel joints. Increasing cooling rate improved strength and hardness near the weld. Both configurations also passed impact testing at -40°C. Corrosion rates of the welded joints were lower than the
Similar to A Review on Friction Stir Welding of Similar and Dissimilar Aluminium Alloys (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
artificial intelligence and data science contents.pptxGauravCar
What is artificial intelligence? Artificial intelligence is the ability of a computer or computer-controlled robot to perform tasks that are commonly associated with the intellectual processes characteristic of humans, such as the ability to reason.
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Artificial intelligence (AI) | Definitio
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.