摘要
根据加工硬化理论，通过对板料经过凸模圆角时的应力分析。
In the paper,based on the theory of strain hardening,the author deduces an approxi mate calculation formula of rounelhole burring through the analysis of the stress state of plate passing punch radius
出处
《模具技术》
1999年第6期30-32,共3页
Die and Mould Technology
