This document summarizes various methods for determining residual stresses in welded steel pipes, including destructive and non-destructive techniques. Destructive methods discussed include the hole drilling method, while non-destructive methods include X-ray diffraction, ultrasonic testing using contact or immersion methods, and finite element modeling. The document reviews several studies comparing results from these different techniques and evaluating their suitability for measuring residual stresses in low carbon steel pipes welded using MIG welding.
Process Parameter Optimization of WEDM for AISI M2 & AISI H13 by Anova & Anal...IJERA Editor
WEDM is a widely recognized unconventional material cutting process used to manufacture components with complex shapes and profiles of hard materials. In this thermal erosion process, there is no physical contact between the wire tool and work materials. AISI M2 and AISI H13 materials are taken for studyand molybdenum wire electrode diameter (0.18mm); experiment is conducted according to Taguchi‟s L16 OA, with input parameters as Peak current, Pulse on, Pulse off their response on MRR, Surface Roughness, Kerf width & Spark Gap is analysed to check the significance of each using ANOVA. Process parameter optimization is done by Analytic Hierarchy Process with the criteria Maximum MRR, minimum kerf and surface roughness. It is observed that for material AISI M2 at low value of peak current (1 A), pulse off (20μs) and pulse on (30μs) we can minimize surface roughness (3.30μm), kerf width (0.195 mm) and maximize MRR (0.022 g/min),from the selected levels whereas for material AISI H13 Peak current (1A), Pulse On (40μs) and high Pulse Off (30μs) we get better Surface roughness (3.71 μm), kerf width (0.196mm) and maximum MRR (0.020g/min), from the selected levels.
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.
Dynamic Analysis And Optimization Of Fatigue Crack Propagation Using Full Fac...IJERA Editor
A pipe installation experiences fluctuating loading condition and occasionally high amplitude Seismic Vibration. The modelling of fatigue crack growth becomes more substantial if the pipes carry harmful fluids. However there is an insufficiency of fatigue crack model for pipes. Generally a prior step before developing a simplified model is to analyze the process and to identify the effective process parameters of the process .The primary objective of this investigation is dealt with identification and analysis of fatigue crack growth process for part-through cracked pipes. In the present investigation an attempt has been made identify the effective process parameter of fatigue life and optimization of the process parameters by using full factorial design methodology, so that it will be help full to develop a simplified fatigue crack growth model in future research works.
Optimization of tig welding using taguchi and regression analysisvivek bisht
In order to reduce the no of experiments required for finding the output .here we use these mathematically process in order to find output (in our case it is STRENGTH). without using further experiments
EFFECT OF NOSE RADIUS ON SURFACE ROUGHNESS DURING CNC TURNING USING RESPONSE ...ijmech
The work and study presented in this paper aims to investigate the effect of nose radius on surface
roughness, in CNC turning of Aluminium (6061) in dry condition. The effect of cutting conditions (speed,
feed and depth of cut) and tool geometry (nose radius) on surface roughness were studied and analysed.
Design of Experiments (DOE) were conducted for the analysis of the influence of the turning parameter on
the surface roughness by using Response Surface Methodology (RSM) and then followed by optimization of
the results using Analysis of Variance (ANOVA) to minimize surface roughness. The nose radius was
identified as the most significant parameter. Surface roughness value decreased with increase in nose
radius.
Process Parameter Optimization of WEDM for AISI M2 & AISI H13 by Anova & Anal...IJERA Editor
WEDM is a widely recognized unconventional material cutting process used to manufacture components with complex shapes and profiles of hard materials. In this thermal erosion process, there is no physical contact between the wire tool and work materials. AISI M2 and AISI H13 materials are taken for studyand molybdenum wire electrode diameter (0.18mm); experiment is conducted according to Taguchi‟s L16 OA, with input parameters as Peak current, Pulse on, Pulse off their response on MRR, Surface Roughness, Kerf width & Spark Gap is analysed to check the significance of each using ANOVA. Process parameter optimization is done by Analytic Hierarchy Process with the criteria Maximum MRR, minimum kerf and surface roughness. It is observed that for material AISI M2 at low value of peak current (1 A), pulse off (20μs) and pulse on (30μs) we can minimize surface roughness (3.30μm), kerf width (0.195 mm) and maximize MRR (0.022 g/min),from the selected levels whereas for material AISI H13 Peak current (1A), Pulse On (40μs) and high Pulse Off (30μs) we get better Surface roughness (3.71 μm), kerf width (0.196mm) and maximum MRR (0.020g/min), from the selected levels.
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.
Dynamic Analysis And Optimization Of Fatigue Crack Propagation Using Full Fac...IJERA Editor
A pipe installation experiences fluctuating loading condition and occasionally high amplitude Seismic Vibration. The modelling of fatigue crack growth becomes more substantial if the pipes carry harmful fluids. However there is an insufficiency of fatigue crack model for pipes. Generally a prior step before developing a simplified model is to analyze the process and to identify the effective process parameters of the process .The primary objective of this investigation is dealt with identification and analysis of fatigue crack growth process for part-through cracked pipes. In the present investigation an attempt has been made identify the effective process parameter of fatigue life and optimization of the process parameters by using full factorial design methodology, so that it will be help full to develop a simplified fatigue crack growth model in future research works.
Optimization of tig welding using taguchi and regression analysisvivek bisht
In order to reduce the no of experiments required for finding the output .here we use these mathematically process in order to find output (in our case it is STRENGTH). without using further experiments
EFFECT OF NOSE RADIUS ON SURFACE ROUGHNESS DURING CNC TURNING USING RESPONSE ...ijmech
The work and study presented in this paper aims to investigate the effect of nose radius on surface
roughness, in CNC turning of Aluminium (6061) in dry condition. The effect of cutting conditions (speed,
feed and depth of cut) and tool geometry (nose radius) on surface roughness were studied and analysed.
Design of Experiments (DOE) were conducted for the analysis of the influence of the turning parameter on
the surface roughness by using Response Surface Methodology (RSM) and then followed by optimization of
the results using Analysis of Variance (ANOVA) to minimize surface roughness. The nose radius was
identified as the most significant parameter. Surface roughness value decreased with increase in nose
radius.
Study on the effects of ceramic particulates (sic, al2 o3 and cenosphere) on ...eSAT Journals
Abstract This paper investigates the sliding wear behaviour of three different composites. Three different reinforcements are under taken for this study namely SiC, Al2O3 and Cenosphere. Along with it percentage reinforcement is also varied from 8wt% to 16wt.%. Other factors applied normal load and sliding speed are also considered. Taguchi design of experimental technique is employed for the study of sliding wear. It is observed that SiC reinforced composites show better wear resistance than Al2O3 and Cenosphere reinforced composites. Regression and artificial neural network (ANN) is used to develop a model to predict the wear loss. It is observed that artificial neural network is more efficient than regression. Keywords: A. Metal-matrix composites (MMCs); B.Wear; C.Taguchi D. Nueral Network
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
OPTIMIZATION OF MACHINING PARAMETERS WITH TOOL INSERT SELECTION FOR S355J2G3 ...AVINASH JURIANI
The key goal of modern manufacturing industries is increased productivity & high quality
Surface Roughness is major concern for quality aspects affecting performance.
Speed, Feed & Depth of cut mainly influences SR & MRR in Turning
Taguchi & Grey Relational Technique is used for optimization followed by ANOVA for contribution
MADM is the need for better Tool Insert Selection to get requisite surface finish
Parametric optimisation of pulsed – tig welding process in butt joining of 30...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
Effect of process factors on surface roughness in dip cryogenic machining of ...eSAT Journals
Abstract A large number of structures that are being constructed at present tend to be wind-sensitive because of their slenderness, shapes, size, lightness and flexibility. With the ever increase in the vertical growth of urban cities, high rise buildings are being constructed in large numbers. In this study, analytical investigation of different shapes of buildings are taken as an example and various analytical approaches are performed on the building. These plans are modeled and wind loads are found out according to I.S 875(part 3)-1987 by taking gust factor and without taking gust factor. These models are compared in different aspects such as storey drift, storey displacement, storey shear, etc. for different shapes of buildings by using finite element software package ETAB’s 13.1.1v. Among these results, which shape of building provide sound wind loading to the structure as well as the structural efficiency would be selected. Key Words: Storey displacement, Storey drift, Storey shear, Gust, Wind load
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.
This paper focus on monitoring of surface roughness and cutting forces while
machining on two different grade stainless steels under dry and mist conditions.
Stainless steels like AISI 304 and AISI 316L are considered for study. Process
variables like workpiece speed, tool feed and depth of cut are taken for
experimentation on CNC lathe. Responses like surface roughness, power consumption
and cutting forces are predicted while machining on the two different stainless grades
under dry and mist. Taguchi design of experiments is considered for experimental
design. Signal-to-noise ratio of the responses are used for determining individual
optimization, while Analysis of Variance is used for knowing significant effect of
process variables over the generated responses. This paper shows novelty of using
power consumption for calculating cutting forces and also comparisons of two
different stainless steel grades simultaneously under dry and mist conditions. In
addition, comparison of AISI 304 material with two different diameters is also studied
An Experimental Approach to Fluctuation of Stress Intensity Factor Distributi...IJERA Editor
The fluctuation of stress intensity factor distribution and fatigue crack propagation in HSLA steel were
investigated, for this purpose fatigue crack growth test were carried out on five mutually similar configured
standard 1CT specimens with reduced thickness using constant amplitude loading cycles under mode-I, with 0.3
stress ratio and maximum load held 11.8 kN. The fluctuation of stress intensity factor distribution were studied
experimentally as a function of crack length, elapsed fatigue life cycle and compliance, along with the behavior
of fatigue crack propagation in HSLA steel. The fracture morphology was observed by field emission scanning
microscopy. ΔK in starting not increased significantly as increasing crack length, number of cycle and
compliance, but after reaching the region-II, it is increasing very significantly and slow fatigue crack propagation
behavior were observed by the material.
Optimization of EDM Process of (Cu-W) EDM Electrodes on Different ProgressionIJERA Editor
The purpose of this research work is to determine the optimal cutting condition of EDM process of different
work piece materials using different compositions of Cu-W tool Electrodes. The key cutting factors such as
Discharge Current, Voltage, Pulse- On – Time, Duty Cycle, Spark Gap and flushing pressure will be optimized.
This paper details the application of Taguchi
techniques to determine the optimal process parameters for
submerged arc welding (SAW).The planned experiment work is
conducted in the semiautomatic submerged arc welding machine
and signal to noise ratios have been computed .the contribution of
each factor has been validated by analysis of variance(ANOVA).
The results of the present investigation indicate that the welding
voltage is the most significant parameter that controls the bead
penetration as compared to other controlling parameters. The
contribution of voltage, current welding speed and nozzle-to-plate
distance have been found to be respectively: 60.8%, 9.86%,
3.54% and 13.8%. Optimum results have been obtained by using
26v, 475A at a trolley speed of 0.25 m/min and NPD of 16 mm.
Study on the effects of ceramic particulates (sic, al2 o3 and cenosphere) on ...eSAT Journals
Abstract This paper investigates the sliding wear behaviour of three different composites. Three different reinforcements are under taken for this study namely SiC, Al2O3 and Cenosphere. Along with it percentage reinforcement is also varied from 8wt% to 16wt.%. Other factors applied normal load and sliding speed are also considered. Taguchi design of experimental technique is employed for the study of sliding wear. It is observed that SiC reinforced composites show better wear resistance than Al2O3 and Cenosphere reinforced composites. Regression and artificial neural network (ANN) is used to develop a model to predict the wear loss. It is observed that artificial neural network is more efficient than regression. Keywords: A. Metal-matrix composites (MMCs); B.Wear; C.Taguchi D. Nueral Network
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
OPTIMIZATION OF MACHINING PARAMETERS WITH TOOL INSERT SELECTION FOR S355J2G3 ...AVINASH JURIANI
The key goal of modern manufacturing industries is increased productivity & high quality
Surface Roughness is major concern for quality aspects affecting performance.
Speed, Feed & Depth of cut mainly influences SR & MRR in Turning
Taguchi & Grey Relational Technique is used for optimization followed by ANOVA for contribution
MADM is the need for better Tool Insert Selection to get requisite surface finish
Parametric optimisation of pulsed – tig welding process in butt joining of 30...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
Effect of process factors on surface roughness in dip cryogenic machining of ...eSAT Journals
Abstract A large number of structures that are being constructed at present tend to be wind-sensitive because of their slenderness, shapes, size, lightness and flexibility. With the ever increase in the vertical growth of urban cities, high rise buildings are being constructed in large numbers. In this study, analytical investigation of different shapes of buildings are taken as an example and various analytical approaches are performed on the building. These plans are modeled and wind loads are found out according to I.S 875(part 3)-1987 by taking gust factor and without taking gust factor. These models are compared in different aspects such as storey drift, storey displacement, storey shear, etc. for different shapes of buildings by using finite element software package ETAB’s 13.1.1v. Among these results, which shape of building provide sound wind loading to the structure as well as the structural efficiency would be selected. Key Words: Storey displacement, Storey drift, Storey shear, Gust, Wind load
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.
This paper focus on monitoring of surface roughness and cutting forces while
machining on two different grade stainless steels under dry and mist conditions.
Stainless steels like AISI 304 and AISI 316L are considered for study. Process
variables like workpiece speed, tool feed and depth of cut are taken for
experimentation on CNC lathe. Responses like surface roughness, power consumption
and cutting forces are predicted while machining on the two different stainless grades
under dry and mist. Taguchi design of experiments is considered for experimental
design. Signal-to-noise ratio of the responses are used for determining individual
optimization, while Analysis of Variance is used for knowing significant effect of
process variables over the generated responses. This paper shows novelty of using
power consumption for calculating cutting forces and also comparisons of two
different stainless steel grades simultaneously under dry and mist conditions. In
addition, comparison of AISI 304 material with two different diameters is also studied
An Experimental Approach to Fluctuation of Stress Intensity Factor Distributi...IJERA Editor
The fluctuation of stress intensity factor distribution and fatigue crack propagation in HSLA steel were
investigated, for this purpose fatigue crack growth test were carried out on five mutually similar configured
standard 1CT specimens with reduced thickness using constant amplitude loading cycles under mode-I, with 0.3
stress ratio and maximum load held 11.8 kN. The fluctuation of stress intensity factor distribution were studied
experimentally as a function of crack length, elapsed fatigue life cycle and compliance, along with the behavior
of fatigue crack propagation in HSLA steel. The fracture morphology was observed by field emission scanning
microscopy. ΔK in starting not increased significantly as increasing crack length, number of cycle and
compliance, but after reaching the region-II, it is increasing very significantly and slow fatigue crack propagation
behavior were observed by the material.
Optimization of EDM Process of (Cu-W) EDM Electrodes on Different ProgressionIJERA Editor
The purpose of this research work is to determine the optimal cutting condition of EDM process of different
work piece materials using different compositions of Cu-W tool Electrodes. The key cutting factors such as
Discharge Current, Voltage, Pulse- On – Time, Duty Cycle, Spark Gap and flushing pressure will be optimized.
This paper details the application of Taguchi
techniques to determine the optimal process parameters for
submerged arc welding (SAW).The planned experiment work is
conducted in the semiautomatic submerged arc welding machine
and signal to noise ratios have been computed .the contribution of
each factor has been validated by analysis of variance(ANOVA).
The results of the present investigation indicate that the welding
voltage is the most significant parameter that controls the bead
penetration as compared to other controlling parameters. The
contribution of voltage, current welding speed and nozzle-to-plate
distance have been found to be respectively: 60.8%, 9.86%,
3.54% and 13.8%. Optimum results have been obtained by using
26v, 475A at a trolley speed of 0.25 m/min and NPD of 16 mm.
Modeling of wedm process for complex shape using multilayer perceptron and re...eSAT Journals
Abstract
Wire cut electric discharge machining is the present days requirement in manufacturing the intricate and complex shape parts as required in the modern industrial products. The process being complex in nature for control over the machining process parameters. In the present study Multilayer perceptron (MLP) model is developed to predict the Material removal rate. The mathematical regression model is also developed by using Response Surface Methodology (RSM) to establish the relationshIp between the MRR and input process parameters like pulse on time (Ton), Pulse off time (Toff), Peak current (IP) and Servo voltage (SV). The predicted value by using MLP and RSM were compared with the experimental values. The average percentage errors are found to be 1.29 and -0.36527 for MLP and RSM respectively. It is observed that the predicted values with RSM are closer to experimental values as compared to MLP model. Key Words: WEDM, Response Surface Methodology, Neural Network, Multi Layer Perception, Material Removal Rate, Surface Roughness
Study of surface roughness for discontinuous ultrasonic vibration assisted el...eSAT Journals
Abstract The objective of this paper is to study the effects of response parameters on the performance characteristics in the Ultrasonic vibration Assisted Electric Discharge Machining (UEDM) Process. Response Surface Methodology (RSM) is used to investigate the effect of amplitude of vibration, peak current, pulse on-time, machining time and flushing pressure. To study the proposed second order polynomial model for surface roughness (SR), a Central Composite Design (CCD) is used for the estimation of the model coefficients of five factors, which are believed to influence the SR in UEDM process. Experiments are conducted on Aluminum alloy 6063 with copper electrode. The response is modeled on experimental data by using RSM. The separable influence of individual machining parameters and the interaction between these parameters are also investigated by using analysis of variance (ANOVA). It is found that amplitude of vibration, peak current; pulse-on time, flushing pressure and most of their interactions have significant affect on SR. Keywords: Central Composite Design, SR, UEDM, RSM, Aluminum alloy (Al6063)
Investigation of Metal Removal Rate and Surface Finish on Inconel 718 by Abra...AM Publications
Abrasive Waterjet (AWJ) cutting has proven to be an effective technology for material processing with the distinct advantages of no thermal distortion, high machining versatility, high flexibility and small cutting forces. In this paper, Taguchi robust design analysis is employed to determine optimal combination of process parameters. The Analysis of Variance (ANOVA) is also applied to identify the most significant factor. The process parameters such as pressure, transverse speed, stand of distance and abrasive flow rate are optimized to investigate their influence on Metal Removal Rate (MRR) and Surface Roughness (Ra) of Inconel. Experiments are carried out by L9 orthogonal array and the results are provided to verify this approach and credible tendencies of output parameters with respect to the input parameters are discussed, from which recommendations are made for process control and optimization.
Research Inventy : International Journal of Engineering and Scienceinventy
Research 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.
Optimizing the process parameters of friction stir welded joint of magnesium ...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
Development of a Taguchi-based framework for optimizing two quality character...IJERA Editor
A framework based on Taguchi parameter design was developed and successfully demonstrated to optimize two
quality characteristics- surface roughness and angular accuracy in Wire Electrical Discharge Machining (WEDM)
process. An orthogonal array (OA)L9was used in the Taguchi experiment design for four controllable
factors, each with three levels. With one non-controllable factor investigated, 18 experiments were conducted in
the Taguchi-based experiment setting, compared to 3
4
(=81) parameter combination as required by a traditional
DOE setting. Conducted for the two response variables, Taguchi experiments from the case study gave the
optimal combination of pulse on time at 9µs (A1), feed rate at 35 in/min (B2), voltage at 8v (C2), and wire
tension at 165g (D3) for surface roughness optmization, and pulse on time at 13µs (A3), feed rate at 35 in/min
(B2), voltage at 8v (C2), and wire tension at 160g (D2) for angular accuracy optmization. This optimal parameter
setting combination was verified through a confirmation run that confirms the optimal quality responses of
126.1µin for surface roughness and 0.024º for angular accuracy. This research ultimately showed the dual
output variable improvement and the framework established itself as a means to solve similar problems in other
machining applications. The developed framework can serve as guidance for researchers to obtain multivariable
optimal setting in a systematic way.
Development of a Taguchi-based framework for optimizing two quality character...IJERA Editor
A framework based on Taguchi parameter design was developed and successfully demonstrated to optimize two
quality characteristics- surface roughness and angular accuracy in Wire Electrical Discharge Machining (WEDM)
process. An orthogonal array (OA)L9was used in the Taguchi experiment design for four controllable
factors, each with three levels. With one non-controllable factor investigated, 18 experiments were conducted in
the Taguchi-based experiment setting, compared to 34 (=81) parameter combination as required by a traditional
DOE setting. Conducted for the two response variables, Taguchi experiments from the case study gave the
optimal combination of pulse on time at 9μs (A1), feed rate at 35 in/min (B2), voltage at 8v (C2), and wire
tension at 165g (D3) for surface roughness optmization, and pulse on time at 13μs (A3), feed rate at 35 in/min
(B2), voltage at 8v (C2), and wire tension at 160g (D2) for angular accuracy optmization. This optimal parameter
setting combination was verified through a confirmation run that confirms the optimal quality responses of
126.1μin for surface roughness and 0.024º for angular accuracy. This research ultimately showed the dual
output variable improvement and the framework established itself as a means to solve similar problems in other
machining applications. The developed framework can serve as guidance for researchers to obtain multivariable
optimal setting in a systematic way.
TENSILE BEHAVIOUR OF ALUMINIUM PLATES (5083) WELDED BY FRICTION STIR WELDING IAEME Publication
Using arc welding, gas welding and other welding process, it is very difficult to weld the aluminum alloys. Friction stir welding, on the other hand, can be used to join most Al alloys and
better surface finishing is achieved. Although the work piece does heat up during friction stir weld, the temperature does not reach the melting point.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
CW RADAR, FMCW RADAR, FMCW ALTIMETER, AND THEIR PARAMETERSveerababupersonal22
It consists of cw radar and fmcw radar ,range measurement,if amplifier and fmcw altimeterThe CW radar operates using continuous wave transmission, while the FMCW radar employs frequency-modulated continuous wave technology. Range measurement is a crucial aspect of radar systems, providing information about the distance to a target. The IF amplifier plays a key role in signal processing, amplifying intermediate frequency signals for further analysis. The FMCW altimeter utilizes frequency-modulated continuous wave technology to accurately measure altitude above a reference point.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.