Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process

Influence of the properties of work and tool materials on material removal rate (MRR), wear ratio (WR), thickness of the recast layer, surface roughness and accuracy of machining in EDM process was investigated. Copper, brass, stainless steel, mild steel and grey cast iron were used in various combi...

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Main Authors:	A.K.M., N. Amin, A. K., Sardar
Format:	Book Chapter
Language:	English
Published:	n.p. 1997
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/29516/ http://irep.iium.edu.my/29516/1/1997_Investigation_of_the_influence_of_the_properties_of_the_wo.pdf

id	iium-29516
recordtype	eprints
spelling	iium-295162017-08-09T02:11:24Z http://irep.iium.edu.my/29516/ Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process A.K.M., N. Amin A. K., Sardar TS200 Metal manufactures. Metalworking Influence of the properties of work and tool materials on material removal rate (MRR), wear ratio (WR), thickness of the recast layer, surface roughness and accuracy of machining in EDM process was investigated. Copper, brass, stainless steel, mild steel and grey cast iron were used in various combinations as work and tool materials. From the experimental results it was observed that the curves of MRR versus machining time show convex behavior, specially after long duration of machining. It was also observed that the MRR and WR are inversely proportional to the melting points of the work and tool materials respectively. Though electrical conductivity of the tool material was found to have influence on tool wear ratio but brass tool was found to have minimum wear ratio although its electrical conductivity was next to copper. From the bar chart of the recast layer thickness it was observed that for all combinations of work and tool material the thickest recast layer was formed in the case of copper electrode. Photo micrographs of the machined surface reveal that micro cavities formed in the cases of lower melting point electrode materials like copper and brass having higher electrical conductivity are comparatively smaller in size (2-3 μm) as compared to the sizes of the micro cavities (8-20 μm) formed in the cases of high melting point electrodes also having lower electrical conductivity. Consequently the machined surface roughness in the latter cases is higher. It was also observed that the tendency of debris concentration is at the middle of the tool job interface resulting in high bottom surface inaccuracy, specially when high melting point work material are machined by low melting point electrodes like brass. On the basis of material removal rate, wear ratio and job surface finish brass electrodes were found to be most suitable. n.p. 1997 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/29516/1/1997_Investigation_of_the_influence_of_the_properties_of_the_wo.pdf A.K.M., N. Amin and A. K., Sardar (1997) Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process. In: Advances in Materials and Processing Technologies. n.p., pp. 616-623.
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 A.K.M., N. Amin A. K., Sardar Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process
description	Influence of the properties of work and tool materials on material removal rate (MRR), wear ratio (WR), thickness of the recast layer, surface roughness and accuracy of machining in EDM process was investigated. Copper, brass, stainless steel, mild steel and grey cast iron were used in various combinations as work and tool materials. From the experimental results it was observed that the curves of MRR versus machining time show convex behavior, specially after long duration of machining. It was also observed that the MRR and WR are inversely proportional to the melting points of the work and tool materials respectively. Though electrical conductivity of the tool material was found to have influence on tool wear ratio but brass tool was found to have minimum wear ratio although its electrical conductivity was next to copper. From the bar chart of the recast layer thickness it was observed that for all combinations of work and tool material the thickest recast layer was formed in the case of copper electrode. Photo micrographs of the machined surface reveal that micro cavities formed in the cases of lower melting point electrode materials like copper and brass having higher electrical conductivity are comparatively smaller in size (2-3 μm) as compared to the sizes of the micro cavities (8-20 μm) formed in the cases of high melting point electrodes also having lower electrical conductivity. Consequently the machined surface roughness in the latter cases is higher. It was also observed that the tendency of debris concentration is at the middle of the tool job interface resulting in high bottom surface inaccuracy, specially when high melting point work material are machined by low melting point electrodes like brass. On the basis of material removal rate, wear ratio and job surface finish brass electrodes were found to be most suitable.
format	Book Chapter
author	A.K.M., N. Amin A. K., Sardar
author_facet	A.K.M., N. Amin A. K., Sardar
author_sort	A.K.M., N. Amin
title	Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process
title_short	Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process
title_full	Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process
title_fullStr	Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process
title_full_unstemmed	Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process
title_sort	investigation of the influence of the properties of the work and tool materials on performance level of electrical discharge machining (edm) process
publisher	n.p.
publishDate	1997
url	http://irep.iium.edu.my/29516/ http://irep.iium.edu.my/29516/1/1997_Investigation_of_the_influence_of_the_properties_of_the_wo.pdf
first_indexed	2023-09-18T20:43:20Z
last_indexed	2023-09-18T20:43:20Z
_version_	1777409511007453184

Investigation of the influence of the properties of the work and tool materials on performance level of Electrical Discharge Machining (EDM) process

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