Roy, Sujit Kumar and Pal, Sukhomay and Ghosh, Samir K and Dey, P P (2008) Machining of interpenetrating phase alumina/aluminium composite by electrical discharge technique. Transactions of the Indian Ceramic Society, 63 (2) 75-98 (2004), 67 (2). pp. 75-80. ISSN 0371-750X

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Abstract

Factors influencing the behaviour of alumina/aluminium interpenetrating phase composite during wire-cut electrical discharge machining (WEDM) are studied. Machining performance in terms of material removal rate (mm(3)center dot min(-1)) and surface roughness (R-a) were compared under different machining conditions. Results show that the machining process affects the surface quality of the machined composite. Under the conditions of the present study, the cutting rate and surface roughness are inter-dependent and vary between 5 and 8 mm(3)center dot min(-1) and 3 and similar to 4 mu m, respectively. WEDM cutting gives rise to the formation of a heat-affected surface layer containing pores and a few cracks. The results are analyzed using the prevailing concepts of electro-discharge machining.

Item Type:	Article
Uncontrolled Keywords:	interpenetrating composite; electro-discharge machining; reactive metal infiltration; surface topography
Subjects:	Processing Science
Divisions:	UNSPECIFIED
Depositing User:	Bula Ghosh
Date Deposited:	20 Jan 2012 10:09
Last Modified:	05 Apr 2016 11:01
URI:	http://cgcri.csircentral.net/id/eprint/441

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