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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2013
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my.iium.irep.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 REM 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 |
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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 |
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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. |
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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/29526/1/Paper_1.pdf http://irep.iium.edu.my/29526/ http://pib.sagepub.com/content/early/2013/01/29/0954405412470443.abstract |
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13.18916 |