Give some analyses to the failure forms of pinhole punch, bring forward several more ideal prevention measures, in order to improve usage life of a pinhole punch and quality of punching part.
对小孔凸模失效形式进行了分析，提出了几种较为理想的预防措施，以提高小孔凸模的使用寿命和冲压件质量。
2
In this paper, the failure of pin punch was analyzed and optimized based on FEA and PVD, according to failure mechanism of fracture and wear of pin punch.
本文主要利用FEA及PVD技术，针对细小凸模的断裂和磨损两种失效形式，进行失效分析与优化。
3
The model of the failure probability distribution was obtained by applying total failure time method for the numerical control punch.