Performance and evaluation of graphite when machining hardened steel ASSAB 718

This project presents the machining of ASSAB718 hardened steel using sinker electro-discharge machining involving two different graphite electrodes. POCO EDM4 and POCO EDM200 The main purpose of this study was to investigate the influence of various parameters on the machining characteristics, namel...

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Main Author:	Saeed Ahmed, Radwan Ahmed
Format:	Thesis
Language:	English
Published:	2009
Subjects:	TJ Mechanical engineering and machinery TS Manufactures
Online Access:	http://eprints.utm.my/id/eprint/12219/6/RadwanAhmedSaeedMFKM2009.pdf
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id	my-utm-ep.12219
record_format	uketd_dc
spelling	my-utm-ep.122192017-09-19T03:41:55Z Performance and evaluation of graphite when machining hardened steel ASSAB 718 2009-11 Saeed Ahmed, Radwan Ahmed TJ Mechanical engineering and machinery TS Manufactures This project presents the machining of ASSAB718 hardened steel using sinker electro-discharge machining involving two different graphite electrodes. POCO EDM4 and POCO EDM200 The main purpose of this study was to investigate the influence of various parameters on the machining characteristics, namely, surface roughness (Ra), Material removal rate (MRR), Electrode wear rate (EWR), and Microcracks depth after undergoing sinker EDM process. The Full Factorial Design of Experiment (DOE) approach with two-levels was used to formulate the experimental plan and, to analyze the effect of each parameter on the machining characteristics four factors under study were pulse interval (A), pulse duration on (R), peak current (P) and servo voltage (SV). Confirmation tests were conducted for the optimum conditions for each machining characteristics in order to verifying and comparing. Design Expert software was utilized to analyze the above results. The, servo voltage and pulse of signal have appeared to be significant to all responses investigated. Overall, the results from the confirmation tests showed that the percentage of performance was acceptable due to all the results obtained were within the allowable value which was less than 11% of margin error for EDM200 and 7.23% for EDM4 electrodes respectively. 2009-11 Thesis http://eprints.utm.my/id/eprint/12219/ http://eprints.utm.my/id/eprint/12219/6/RadwanAhmedSaeedMFKM2009.pdf application/pdf en public 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 TS Manufactures
spellingShingle	TJ Mechanical engineering and machinery TS Manufactures Saeed Ahmed, Radwan Ahmed Performance and evaluation of graphite when machining hardened steel ASSAB 718
description	This project presents the machining of ASSAB718 hardened steel using sinker electro-discharge machining involving two different graphite electrodes. POCO EDM4 and POCO EDM200 The main purpose of this study was to investigate the influence of various parameters on the machining characteristics, namely, surface roughness (Ra), Material removal rate (MRR), Electrode wear rate (EWR), and Microcracks depth after undergoing sinker EDM process. The Full Factorial Design of Experiment (DOE) approach with two-levels was used to formulate the experimental plan and, to analyze the effect of each parameter on the machining characteristics four factors under study were pulse interval (A), pulse duration on (R), peak current (P) and servo voltage (SV). Confirmation tests were conducted for the optimum conditions for each machining characteristics in order to verifying and comparing. Design Expert software was utilized to analyze the above results. The, servo voltage and pulse of signal have appeared to be significant to all responses investigated. Overall, the results from the confirmation tests showed that the percentage of performance was acceptable due to all the results obtained were within the allowable value which was less than 11% of margin error for EDM200 and 7.23% for EDM4 electrodes respectively.
format	Thesis
qualification_level	Master's degree
author	Saeed Ahmed, Radwan Ahmed
author_facet	Saeed Ahmed, Radwan Ahmed
author_sort	Saeed Ahmed, Radwan Ahmed
title	Performance and evaluation of graphite when machining hardened steel ASSAB 718
title_short	Performance and evaluation of graphite when machining hardened steel ASSAB 718
title_full	Performance and evaluation of graphite when machining hardened steel ASSAB 718
title_fullStr	Performance and evaluation of graphite when machining hardened steel ASSAB 718
title_full_unstemmed	Performance and evaluation of graphite when machining hardened steel ASSAB 718
title_sort	performance and evaluation of graphite when machining hardened steel assab 718
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2009
url	http://eprints.utm.my/id/eprint/12219/6/RadwanAhmedSaeedMFKM2009.pdf
_version_	1747814910841061376

Performance and evaluation of graphite when machining hardened steel ASSAB 718

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