圆珠笔头自动装配过程中强度的有限元分析

李恒，李正军，胡鼎，杨雷

The finite element strength analysis of the ballpoint pen tip in automatic assembly

LI Heng, LI Zheng-jun, HU Ding, YANG Lei

山东科学 . 2017, (3): 51 -57 . DOI: 10.3976/j.issn.1002-4026.2017.03.010