Title: Experimental investigation on drilling temperature of composites

Authors: Yanming Quan, Luhua Sun

Addresses: College of Mechanical Engineering, South China University of Technology, Wushan Rd., Guangzhou 510640, China. ' College of Mechanical Engineering, South China University of Technology, Wushan Rd., Guangzhou 510640, China

Abstract: Drilling is one of the most usual processes for manufacturing carbon fibre reinforced plastic (CFRP) composite components, but this kind of composites are difficult to machine. Cutting temperature is a basal problem of machining mechanism, however, the research literatures on cutting temperature of composites, in particular, under the condition of high speed machining, have been found seldom. This paper introduces an experimental investigation on drilling temperature of drilled hole wall of CFRP composites by means of inserted thermocouples. The investigation results indicate that when drilling CFRP composite with solid carbide drills in low-medium speed region and high speed region, the effects of cutting speed and feed on cutting temperature have different trends; work piece thickness and drill material have notable effects on drilling temperature but the drill diameter does not.

Keywords: carbon fibre reinforced plastic; CFRP composites; composites machining; drilling temperature; thermocouples; high speed machining; cutting speed; feed; cutting temperature; workpiece thickness; drill materials.

DOI: 10.1504/IJMMM.2008.020969

International Journal of Machining and Machinability of Materials, 2008 Vol.3 No.3/4, pp.356 - 363

Published online: 29 Oct 2008 *

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