用装有合成超硬材料的阶梯式端铣刀加工淬火钢和铸铁,其加工过程的技术经济指标在很大程度上是由铣刀的结构特征决定的。本文提出的阶梯式端铣刀结构优化设计的过程,为分阶段解决以下几个问题: 1) 建立切削过程中所设计铣刀与实现该切削过程所用机床之间相互关系的数学模型; 2) 提出所设计铣刀的设计宗旨,例如,某些最佳化方面的课题; 3) 选择解决上述课题的方法(一种或多种),并在电子计算机上进行数值计算,得出结果。在设计的第一阶段,可以近似地利用其主 Machining hardened steel and cast iron with stepped end mills equipped with synthetic super-hard materials, the technical and economic indicators of the process are largely determined by the structural characteristics of the milling cutter. In this paper, the process of structural optimization design of stepped end mill is proposed to solve the following problems in stages: 1) to establish a mathematical model of the relationship between the designed milling cutter and the machine tool used in the cutting process; 2) For example, some optimization topics; 3) Choose the method (s) to solve the above problems, and the numerical calculation on a computer to get the result. In the first stage of design, its owner can be used approximately