Analysis of rupture mechanism of precision high speed shear process of bar material has been done from the view of rupture mechanics with discussion about influence of shear speed and temperature on quality of section area of billet in high speed shear.

• 从断裂力学逆角度对高速棒料精密剪切过程的断裂机理进行了分析,讨论了高速剪切时,剪切速度和剪切温度对剪切后毛坯断面质量的影响。