1、前言钛合金的比重小强度高,且有良好的耐热性和耐腐蚀性,因此近年来被广泛的应用于宇宙、航天、化学等各个领域。但由于钛合金的导热率很低,化学性能又比较活泼,因此在切削加工时由于切削温度升高而发生与刀具之间的溶敷现象,特别是进行高速 1, Preface The proportion of titanium alloy is high strength and good heat resistance and corrosion resistance, so it has been widely used in various fields such as the universe, aerospace and chemistry in recent years. However, due to the low thermal conductivity of titanium alloy, the chemical properties and more lively, so the cutting temperature due to cutting temperature and the occurrence of tooling between the phenomenon of dissolution, especially for high-speed