Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy

The resistance of a material to an indentation on microscopic scale is an indication of its micro-hardness. To a lubrication engineer, micro-hardness is synonymous with surface wear resistance of a material. In this study, an attempt was made to enhance the surface micro-hardness of titanium alloy (...

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Main Authors:	Ndaliman, Mohammed Baba, Khan, Ahsan Ali, Yeakub Ali , Mohammad
Format:	Article
Language:	English
Published:	Institution of Mechanical Engineers 2013
Subjects:	TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/29526/ http://irep.iium.edu.my/29526/ http://irep.iium.edu.my/29526/ http://irep.iium.edu.my/29526/1/Paper_1.pdf

id	iium-29526
recordtype	eprints
spelling	iium-295262013-05-24T10:12:33Z http://irep.iium.edu.my/29526/ Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy Ndaliman, Mohammed Baba Khan, Ahsan Ali Yeakub Ali , Mohammad TS200 Metal manufactures. Metalworking The resistance of a material to an indentation on microscopic scale is an indication of its micro-hardness. To a lubrication engineer, micro-hardness is synonymous with surface wear resistance of a material. In this study, an attempt was made to enhance the surface micro-hardness of titanium alloy (Ti-6Al-4V) through modification of electrical discharge machining process parameters. These parameters are the electrode, the dielectric fluid and the electrical variables of the machine. Cu–TaC composite electrode produced through powder metallurgy method was used during the electrical discharge machining with different urea concentrations in distilled water as dielectric fluid. The electrical variables used were the peak current, the pulse duration and the duty factor. Electrical discharge machining was also conducted with copper (Cu) powder metallurgy electrode with distilled water dielectric fluid for comparison. The results showed that the micro-hardness of the electrical discharge machined surfaces with Cu–TaC electrode/urea dielectric fluid was generally higher than that of those with Cu electrode/distilled water dielectric fluid. The highest micro-hardness of 1795 Hv was attained with 10 g/L of urea concentration. Institution of Mechanical Engineers 2013-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/29526/1/Paper_1.pdf Ndaliman, Mohammed Baba and Khan, Ahsan Ali and Yeakub Ali , Mohammad (2013) Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 227 (3). pp. 460-464. http://pib.sagepub.com/content/early/2013/01/29/0954405412470443.abstract 10.1177/0954405412470443
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 Ndaliman, Mohammed Baba Khan, Ahsan Ali Yeakub Ali , Mohammad Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
description	The resistance of a material to an indentation on microscopic scale is an indication of its micro-hardness. To a lubrication engineer, micro-hardness is synonymous with surface wear resistance of a material. In this study, an attempt was made to enhance the surface micro-hardness of titanium alloy (Ti-6Al-4V) through modification of electrical discharge machining process parameters. These parameters are the electrode, the dielectric fluid and the electrical variables of the machine. Cu–TaC composite electrode produced through powder metallurgy method was used during the electrical discharge machining with different urea concentrations in distilled water as dielectric fluid. The electrical variables used were the peak current, the pulse duration and the duty factor. Electrical discharge machining was also conducted with copper (Cu) powder metallurgy electrode with distilled water dielectric fluid for comparison. The results showed that the micro-hardness of the electrical discharge machined surfaces with Cu–TaC electrode/urea dielectric fluid was generally higher than that of those with Cu electrode/distilled water dielectric fluid. The highest micro-hardness of 1795 Hv was attained with 10 g/L of urea concentration.
format	Article
author	Ndaliman, Mohammed Baba Khan, Ahsan Ali Yeakub Ali , Mohammad
author_facet	Ndaliman, Mohammed Baba Khan, Ahsan Ali Yeakub Ali , Mohammad
author_sort	Ndaliman, Mohammed Baba
title	Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
title_short	Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
title_full	Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
title_fullStr	Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
title_full_unstemmed	Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
title_sort	influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy
publisher	Institution of Mechanical Engineers
publishDate	2013
url	http://irep.iium.edu.my/29526/ http://irep.iium.edu.my/29526/ http://irep.iium.edu.my/29526/ http://irep.iium.edu.my/29526/1/Paper_1.pdf
first_indexed	2023-09-18T20:43:21Z
last_indexed	2023-09-18T20:43:21Z
_version_	1777409512030863360

Influence of electrical discharge machining process parameters on surface micro-hardness of titanium alloy

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