Abstract
Abstract Tool wear is a prominent problem during drilling of carbon-fibre-reinforced polymer (CFRP). This paper investigated the tribological behaviors and wear mechanism of CFRP against tungsten carbide under dry friction condition. The influence of load, temperature and sliding velocity on friction coefficient were studied. The wear morphology was detected and showed the inhomogeneity and anisotropy of CFRP have important influence on wear characteristics. Moreover, running-in process will have a positive influence on the subsequent friction process under certain conditions. A novel method which adopted pre running-in was thus proposed to improve tool life, and the effectiveness was verified by drilling tests. Present work reveals the wear mechanism of CFRP against tungsten carbide, and provides a new idea for reducing tool wear.
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