一、前言某些机器零件采用了难加工材料制造，其中包括一些高硬度的脆性材料。在这个加工领域中，超硬刀具能够发挥很大的作用。除天然金刚石外，人造金刚石在近年来已得到了更为广泛的应用。人造金刚石是以石墨为原料，加入催化剂，经过高温、高压制成单晶金刚石细粉，可用作 I. INTRODUCTION Some machine parts are made of hard-to-machine materials, including some high-hardness, brittle materials. In this area of ​​processing, superhard cutting tools can play a big role. In addition to natural diamond, synthetic diamond has been more widely used in recent years. Synthetic diamond is graphite as raw material, adding catalyst, after high temperature, high pressure made of single crystal diamond powder can be used as