基于Deform-3D六角头螺栓冷镦模具设计研究

Research on Cold Heading Die Design for Hexagonal Head Bolt Based on Deform-3D

通过对航空领域的六角头螺栓冷镦成形过程的分析与研究,利用有限元软件Deform-3D模拟六角头螺栓预成型、切边的成型工序,获得模具最优设计方案;对模具进行仿真试验,结果显示：模具的尺寸能够保证零件的质量要求,且头部成型饱满,没有出现飞边和杆部扭曲。由此,设计出一套航空六角头螺栓成型的模具,并通过试验进行验证,也为以后的冷镦模具设计提供了有效的依据。

Through the analysis and research on the cold heading forming process of hex head bolts in the aviation industry, the optimal design is obtained by simulating the pre-forming and trimming process of hexagonal head bolts through Deform-3 D, which is a finite element software. The results show that the size of the die can ensure the quality, the die is full head molding and does not occur the stem portion on flash and twist. Based on these, a set of shaped mold for the aviation hex head bolt is designed and verified by test. While it provides an effective basis for future design of cold heading die.