带金属嵌件的汽车接插件翘曲变形与残余应力研究

Study on warpage deformation and residual stress of automotive connector with metal inserts

针对汽车接插件存在的翘曲变形等问题,通过建立力学模型,基于Moldflow和ANSYS软件研究了塑件内部残余应力分布情况,发现了引发不均匀收缩和金属嵌件变形的原因,得到了嵌件Z方向的最大变形量;再进一步优化注塑工艺参数,使得产品Z方向的总体翘曲变形符合设计要求。该研究可为相似带金属嵌件的注塑件翘曲变形和残余应力分析提供有效指导。

Aiming at the problems of warpage deformation of automobile connectors,the mechanical stress model is established and the residual stress distribution inside the plastic parts is studied based on Moldflow and ANSYS software.The causes of uneven shrinkage and inserts’deformation are found.The maximum deformation amount in the Z direction is obtained.Furthermore,the injection molding process parameters are optimized,so that the overall warpage deformation in the Z direction of the product meets the design requirements.This study provides an effective guide for warpage and residual stress analysis of similar injection molded parts with metal inserts.