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近些年来,为了适应难加工材料的加工和提高生产率的需要,国外硬质切削刀具的研究和应用都有较大的进展。其中尤以涂层刀具发展最快,居于领先地位;而陶瓷和碳化钛硬质合金刀具的性能也在逐步改进,成为很有前途的高速切削刀具之一。从技术上看,这些进展突出表现在加强了刀具切削和磨损理论的研究;在改进现有刀具材料性能的同时,积极发展新型刀具材料;注重工艺方法的改进,以提
In recent years, in order to adapt to the difficult processing of materials and the need to improve productivity, research and application of foreign hard cutting tools have made great progress. In particular, the fastest growing tool coating, living in a leading position; and ceramic and titanium carbide carbide tool performance is also gradually improved, as a promising high-speed cutting tool. Technically, these advances are highlighted in the research on the theory of cutting and wear of cutting tools, the development of new tool materials while improving the performance of existing tool materials, the improvement of process methods,