Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite

The electrical discharge machining (EDM) is considered as non-conventional machining due to its different method of machining compared to conventional machining. This study presents the results of experimental studies carried out to conduct a comprehensive investigation on the influence of EDM input...

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Main Author:	Safiei, Wahaizad
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/53478/25/WahaizadSafieiMFKM2014.pdf
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spelling	my-utm-ep.534782020-07-16T01:22:33Z Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite 2014-06 Safiei, Wahaizad TJ Mechanical engineering and machinery The electrical discharge machining (EDM) is considered as non-conventional machining due to its different method of machining compared to conventional machining. This study presents the results of experimental studies carried out to conduct a comprehensive investigation on the influence of EDM input parameters on the characteristics of EDM process. The machining parameters include peak current, servo voltage, pulse ON time and pulse OFF time. The study was conducted using 2 levels of full factorial method in Design of Experiments (DOE). The design expert version 9software was employed to perform all the data analysis for full factorial and Central Composite Design (CCD) experiments. Basically, this study evaluates the EDM performance on Stainless Steel 316L using Sodick EDM linear motor series AM3Lwhich employed copper impregnated graphite of diameter 7.0 mm as the tool electrode.The machining responses are material removal rate (MRR), electrode wear rate (EWR),surface roughness (SR) and dimensional accuracy. An optimum setting was determined based on DOE and analysis of variance analysis (ANOVA). Result’s showed that peak current was the most significant factors to all machining responses. The servo voltage does not have significant effect to the machining responses in the Response Surface Methodology (RSM). Higher current produced higher MRR, EWR, SR and dimensional accuracy. Maximum MRR was obtained at peak current ranging from 27amp to 38amp,pulse on time range from 120μs to 145μs and 60μs of pulse off time. Maximum EWR was obtained at peak current ranging from 27amp to 37amp, pulse on time range from140μs to 160μs and 60μs of pulse off time. Lower dimensional accuracy and SR obtained at 5amp of pulse on time. Higher pulse off time produced lower MRR and EWR. 2014-06 Thesis http://eprints.utm.my/id/eprint/53478/ http://eprints.utm.my/id/eprint/53478/25/WahaizadSafieiMFKM2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:85437 masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Safiei, Wahaizad Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite
description	The electrical discharge machining (EDM) is considered as non-conventional machining due to its different method of machining compared to conventional machining. This study presents the results of experimental studies carried out to conduct a comprehensive investigation on the influence of EDM input parameters on the characteristics of EDM process. The machining parameters include peak current, servo voltage, pulse ON time and pulse OFF time. The study was conducted using 2 levels of full factorial method in Design of Experiments (DOE). The design expert version 9software was employed to perform all the data analysis for full factorial and Central Composite Design (CCD) experiments. Basically, this study evaluates the EDM performance on Stainless Steel 316L using Sodick EDM linear motor series AM3Lwhich employed copper impregnated graphite of diameter 7.0 mm as the tool electrode.The machining responses are material removal rate (MRR), electrode wear rate (EWR),surface roughness (SR) and dimensional accuracy. An optimum setting was determined based on DOE and analysis of variance analysis (ANOVA). Result’s showed that peak current was the most significant factors to all machining responses. The servo voltage does not have significant effect to the machining responses in the Response Surface Methodology (RSM). Higher current produced higher MRR, EWR, SR and dimensional accuracy. Maximum MRR was obtained at peak current ranging from 27amp to 38amp,pulse on time range from 120μs to 145μs and 60μs of pulse off time. Maximum EWR was obtained at peak current ranging from 27amp to 37amp, pulse on time range from140μs to 160μs and 60μs of pulse off time. Lower dimensional accuracy and SR obtained at 5amp of pulse on time. Higher pulse off time produced lower MRR and EWR.
format	Thesis
qualification_level	Master's degree
author	Safiei, Wahaizad
author_facet	Safiei, Wahaizad
author_sort	Safiei, Wahaizad
title	Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite
title_short	Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite
title_full	Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite
title_fullStr	Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite
title_full_unstemmed	Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite
title_sort	performance evaluation of electrical discharge machining on stainless steel 316l using copper impregnated graphite
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/53478/25/WahaizadSafieiMFKM2014.pdf
_version_	1747817565096247296

Performance evaluation of electrical discharge machining on stainless steel 316L using copper impregnated graphite

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