1、序言改善刀具的切削性能,是提高金属加工业中劳动生产率不可分割的组成部分,并对减少制造工时、降低产品成本有着决定性影响。因为在切削过程中几乎全部能量均集中于切削楔上转换,所以处于该区域的刀具材料,承受着很高的机械、热和化学的多种负荷,而由此产生的磨损,即限定了刀刃的使用寿命。因此,十分清楚,切削刀具的效率在很大程度上取决于所用刀具材料的耐磨性。 1, Preamble Improve the cutting performance of the tool is an integral part of improving labor productivity in the metal processing industry, and has a decisive impact on reducing manufacturing man-hours and product costs. Since almost all of the energy is focused on the cutting wedge upconversion during the cutting process, the tool material in this area is exposed to high mechanical, thermal and chemical loads and the resulting wear, ie, the edge The service life. Therefore, it is quite clear that the efficiency of a cutting tool depends very much on the wear resistance of the tool material used.