切削技术的发展依赖刀具技术和高速机床技术的进步,刀具与机床的正确选用常起着决定性作用。采用耐热性更好的新型刀具材料及涂层、合理设计刀具结构与几何参数、选择最佳的切削速度是实现切削加工优化的重要保障。在目前高性能刀具材料如硬质合金、金属陶瓷、金刚石、立方氮化 The development of cutting technology depends on cutting tool technology and high-speed machine tool technology, tool and machine tool often plays a decisive role in the correct selection. The use of a new tool material and coating with better heat resistance, reasonable design of the tool structure and geometric parameters, the choice of the best cutting speed is an important guarantee to achieve cutting optimization. In the current high-performance tool materials such as cemented carbide, cermet, diamond, cubic nitride