Influence of process parameters on surface integrity during EDM of mild steel

The present paper reports on the influence of process parameters on surface quality of mild steel during EDM using a copper electrode. Surface quality was evaluated on the basis of work surface roughness, micro cracks and thickness of the recast layer. Current, pulse-on time, pulse-off time and volt...

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Main Authors:	Khan, Ahsan Ali, Adesta, Erry Yulian Triblas, Mohammad , Yeakub Ali
Format:	Conference or Workshop Item
Language:	English
Published:	2010
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/3274/ http://irep.iium.edu.my/3274/1/Full_Paper.pdf

id	iium-3274
recordtype	eprints
spelling	iium-32742017-06-20T03:44:01Z http://irep.iium.edu.my/3274/ Influence of process parameters on surface integrity during EDM of mild steel Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali TS200 Metal manufactures. Metalworking The present paper reports on the influence of process parameters on surface quality of mild steel during EDM using a copper electrode. Surface quality was evaluated on the basis of work surface roughness, micro cracks and thickness of the recast layer. Current, pulse-on time, pulse-off time and voltage were the variable parameters for the present investigation. It was found that pulse-on time is the most significant factor for work surface roughness. With increase in pulse-on time the work material gets more time to absorb heat and more melting and vaporization of material takes place producing a rough surface. Work surface roughness was also found to increase with increase in current. A higher current produces a spark of higher energy removing more material and leaving a larger crater that results a rough surface. An increase in voltage also results a poorer surface, but voltage demonstrated to have a very small effect on job surface roughness. Micro cracks were found on the surface due to rapid heating and cooling of the surface during EDM. Micro cracks reduced in number and size when the surface was EDMed with a low current and a short pulse-on time. A layer of recast layer on the work surface was observed after EDM. The thickness of the recast layer was higher while a higher current together with a higher pulse-on time were used. It was concluded that in order to have a high quality surface it should be machined with lower values of current, pulse-on time and voltage. 2010 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/3274/1/Full_Paper.pdf Khan, Ahsan Ali and Adesta, Erry Yulian Triblas and Mohammad , Yeakub Ali (2010) Influence of process parameters on surface integrity during EDM of mild steel. In: 22nd United Kingdom-Malaysia Engineering Conference 2010, 8-9th April, 2010, London.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TS200 Metal manufactures. Metalworking
spellingShingle	TS200 Metal manufactures. Metalworking Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali Influence of process parameters on surface integrity during EDM of mild steel
description	The present paper reports on the influence of process parameters on surface quality of mild steel during EDM using a copper electrode. Surface quality was evaluated on the basis of work surface roughness, micro cracks and thickness of the recast layer. Current, pulse-on time, pulse-off time and voltage were the variable parameters for the present investigation. It was found that pulse-on time is the most significant factor for work surface roughness. With increase in pulse-on time the work material gets more time to absorb heat and more melting and vaporization of material takes place producing a rough surface. Work surface roughness was also found to increase with increase in current. A higher current produces a spark of higher energy removing more material and leaving a larger crater that results a rough surface. An increase in voltage also results a poorer surface, but voltage demonstrated to have a very small effect on job surface roughness. Micro cracks were found on the surface due to rapid heating and cooling of the surface during EDM. Micro cracks reduced in number and size when the surface was EDMed with a low current and a short pulse-on time. A layer of recast layer on the work surface was observed after EDM. The thickness of the recast layer was higher while a higher current together with a higher pulse-on time were used. It was concluded that in order to have a high quality surface it should be machined with lower values of current, pulse-on time and voltage.
format	Conference or Workshop Item
author	Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali
author_facet	Khan, Ahsan Ali Adesta, Erry Yulian Triblas Mohammad , Yeakub Ali
author_sort	Khan, Ahsan Ali
title	Influence of process parameters on surface integrity during EDM of mild steel
title_short	Influence of process parameters on surface integrity during EDM of mild steel
title_full	Influence of process parameters on surface integrity during EDM of mild steel
title_fullStr	Influence of process parameters on surface integrity during EDM of mild steel
title_full_unstemmed	Influence of process parameters on surface integrity during EDM of mild steel
title_sort	influence of process parameters on surface integrity during edm of mild steel
publishDate	2010
url	http://irep.iium.edu.my/3274/ http://irep.iium.edu.my/3274/1/Full_Paper.pdf
first_indexed	2023-09-18T20:11:03Z
last_indexed	2023-09-18T20:11:03Z
_version_	1777407479698685952

Influence of process parameters on surface integrity during EDM of mild steel

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