Relationship of surface roughness with current and voltage during wire EDM

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 research experimental investigations have been conducted to establish relation...

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Main Authors:	Khan, Ahsan Ali, Mohd Ali , Munira, Shaffiar, Norhashimah
Format:	Article
Language:	English
Published:	Asian Network for Scientific Information 2006
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/7863/ http://irep.iium.edu.my/7863/ http://irep.iium.edu.my/7863/ http://irep.iium.edu.my/7863/1/2317-2320.pdf

id	iium-7863
recordtype	eprints
spelling	iium-78632014-11-26T01:33:10Z http://irep.iium.edu.my/7863/ Relationship of surface roughness with current and voltage during wire EDM Khan, Ahsan Ali Mohd Ali , Munira Shaffiar, Norhashimah TS200 Metal manufactures. Metalworking 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 research experimental investigations have been conducted to establish relationships of job surface finish with current and voltage. Brass wires of diameters 0.3, 0.25, 0.20 and 0.15 mm were used. Work materials tested were mild steel, aluminum, 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 obsetved under an electron-scanning 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. A statistical analysis was done to pick up the most probabilistic data from the bank of data obtained from the experiments. Finally, mathematical relationships have been developed between job surface finish with current and voltage within the specified ranges for a few work materials. Asian Network for Scientific Information 2006 Article PeerReviewed application/pdf en http://irep.iium.edu.my/7863/1/2317-2320.pdf Khan, Ahsan Ali and Mohd Ali , Munira and Shaffiar, Norhashimah (2006) Relationship of surface roughness with current and voltage during wire EDM. Journal of Applied Sciences, 6 (10). pp. 2317-2320. ISSN 1812-5662 (O), 1812-5654 (P) http://scialert.net/abstract/?doi=jas.2006.2317.2320 10.3923/jas.2006.2317.2320
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 Shaffiar, Norhashimah Relationship of surface roughness with current and voltage during wire EDM
description	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 research experimental investigations have been conducted to establish relationships of job surface finish with current and voltage. Brass wires of diameters 0.3, 0.25, 0.20 and 0.15 mm were used. Work materials tested were mild steel, aluminum, 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 obsetved under an electron-scanning 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. A statistical analysis was done to pick up the most probabilistic data from the bank of data obtained from the experiments. Finally, mathematical relationships have been developed between job surface finish with current and voltage within the specified ranges for a few work materials.
format	Article
author	Khan, Ahsan Ali Mohd Ali , Munira Shaffiar, Norhashimah
author_facet	Khan, Ahsan Ali Mohd Ali , Munira Shaffiar, Norhashimah
author_sort	Khan, Ahsan Ali
title	Relationship of surface roughness with current and voltage during wire EDM
title_short	Relationship of surface roughness with current and voltage during wire EDM
title_full	Relationship of surface roughness with current and voltage during wire EDM
title_fullStr	Relationship of surface roughness with current and voltage during wire EDM
title_full_unstemmed	Relationship of surface roughness with current and voltage during wire EDM
title_sort	relationship of surface roughness with current and voltage during wire edm
publisher	Asian Network for Scientific Information
publishDate	2006
url	http://irep.iium.edu.my/7863/ http://irep.iium.edu.my/7863/ http://irep.iium.edu.my/7863/ http://irep.iium.edu.my/7863/1/2317-2320.pdf
first_indexed	2018-09-07T03:29:45Z
last_indexed	2018-09-07T03:29:45Z
_version_	1610917856364462080

Relationship of surface roughness with current and voltage during wire EDM

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