Barnes, Stuart, Pashby, I. R. and Mok, D. K.. (1996) The effect of workpiece temperature on the machinability of an aluminum/SiC MMC. Journal of Manufacturing Science and Engineering, Vol.118 (No.3). pp. 422-427. ISSN 1087-1357

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Abstract

Metal matrix composites (MMCs) are becoming an increasingly important class of engineering material which are finding applications both in the automotive and aerospace industries. However, their machinability is regarded as poor due to the severe abrasive tool wear observed during machining. Prior to an investigation into the laser-assisted turning of an aluminium/silicon carbide MMC, the machining behaviour of the material after pre-heating to 200, 300, and 400 degrees C was investigated. The results indicated that at cutting speeds from 20-90 m/min the wear rate increased with increasing workpiece temperature although the wear mechanism remained one of abrasion. The presence of a built-up edge (BUE) was noted and a strong correlation found between its presence and the amount of wear produced. The results of this work show that within the range of parameters investigated, the pre-heating of the MMC had a detrimental effect on its machinability.

Item Type:	Journal Article
Subjects:	T Technology > TS Manufactures T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title:	Journal of Manufacturing Science and Engineering
Publisher:	A S M E International
ISSN:	1087-1357
Date:	August 1996
Volume:	Vol.118
Number:	No.3
Number of Pages:	6
Page Range:	pp. 422-427
Identification Number:	10.1115/1.2831047
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/18476

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