Relationship between machining variables and process characteristics during wire EDM

Abstract. Wire EDM is in use for a long time for cutting punches and dies, shaped pockets and other machine parts. Surface finish of the machined surface mainly depends on current and voltage used during machining. In the present work experimental investigations have been conducted to establish rela...

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Main Authors:	Khan, Ahsan Ali, Mohd Ali , Munira, Mohd Shaffiar , Norhashimah
Format:	Book Chapter
Language:	English
Published:	International Islamic University Malaysia 2011
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/25551/ http://irep.iium.edu.my/25551/ http://irep.iium.edu.my/25551/2/Chapter_6.pdf

id	iium-25551
recordtype	eprints
spelling	iium-255512012-09-24T03:21:55Z http://irep.iium.edu.my/25551/ Relationship between machining variables and process characteristics during wire EDM Khan, Ahsan Ali Mohd Ali , Munira Mohd Shaffiar , Norhashimah TS200 Metal manufactures. Metalworking Abstract. Wire EDM is in use for a long time for cutting punches and dies, shaped pockets and other machine parts. Surface finish of the machined surface mainly depends on current and voltage used during machining. In the present work experimental investigations have been conducted to establish relationships job surface finish with current and voltage. Brass wires of diameters 0.3 mm, 0.25 mm, 0.20 mm and 0.15 mm were used. Work materials tested were mild steel, aluminium, cemented carbide, copper and stainless steel. After machining each material with specific current and voltage the hardness and the job surface roughness were measured and their surfaces were observed under a scanning- electron microscope. Results of the experiments show that in general the machined surface becomes rougher with increase in current and voltage. Microstructures of the specimens also show that craters on the finished surface become larger as a result of using higher current and voltage. It was also found that wires of smaller diameters give smoother surface than those cut with larger diameters. It has been established that machining of carbides should be limited to wires with diameter equal to or less than 0.15 mm. Use of wires of greater diameters causes frequent wire breakage. International Islamic University Malaysia 2011 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/25551/2/Chapter_6.pdf Khan, Ahsan Ali and Mohd Ali , Munira and Mohd Shaffiar , Norhashimah (2011) Relationship between machining variables and process characteristics during wire EDM. In: Advanced Machining Processes. International Islamic University Malaysia, Kuala Lumpur, Malaysia, pp. 28-32. ISBN 9789674181628 http://rms.research.iium.edu.my/bookstore/default.aspx
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 Mohd Ali , Munira Mohd Shaffiar , Norhashimah Relationship between machining variables and process characteristics during wire EDM
description	Abstract. Wire EDM is in use for a long time for cutting punches and dies, shaped pockets and other machine parts. Surface finish of the machined surface mainly depends on current and voltage used during machining. In the present work experimental investigations have been conducted to establish relationships job surface finish with current and voltage. Brass wires of diameters 0.3 mm, 0.25 mm, 0.20 mm and 0.15 mm were used. Work materials tested were mild steel, aluminium, cemented carbide, copper and stainless steel. After machining each material with specific current and voltage the hardness and the job surface roughness were measured and their surfaces were observed under a scanning- electron microscope. Results of the experiments show that in general the machined surface becomes rougher with increase in current and voltage. Microstructures of the specimens also show that craters on the finished surface become larger as a result of using higher current and voltage. It was also found that wires of smaller diameters give smoother surface than those cut with larger diameters. It has been established that machining of carbides should be limited to wires with diameter equal to or less than 0.15 mm. Use of wires of greater diameters causes frequent wire breakage.
format	Book Chapter
author	Khan, Ahsan Ali Mohd Ali , Munira Mohd Shaffiar , Norhashimah
author_facet	Khan, Ahsan Ali Mohd Ali , Munira Mohd Shaffiar , Norhashimah
author_sort	Khan, Ahsan Ali
title	Relationship between machining variables and process characteristics during wire EDM
title_short	Relationship between machining variables and process characteristics during wire EDM
title_full	Relationship between machining variables and process characteristics during wire EDM
title_fullStr	Relationship between machining variables and process characteristics during wire EDM
title_full_unstemmed	Relationship between machining variables and process characteristics during wire EDM
title_sort	relationship between machining variables and process characteristics during wire edm
publisher	International Islamic University Malaysia
publishDate	2011
url	http://irep.iium.edu.my/25551/ http://irep.iium.edu.my/25551/ http://irep.iium.edu.my/25551/2/Chapter_6.pdf
first_indexed	2023-09-18T20:38:04Z
last_indexed	2023-09-18T20:38:04Z
_version_	1777409179541045248

Relationship between machining variables and process characteristics during wire EDM

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