The research results were used in design of a punch in flashless die forging for the star-like inner race of constant-velocity universal joint in cars and the fracture problem of punch was solved.

• 将研究结果应用于轿车等速万向节星形套闭塞模锻凸模设计中，解决了闭塞模锻工艺中凸模断裂问题，对闭塞模锻凸模设计有一定的指导意义。