摘要
本文对某汽车后保下支撑件这种大的薄壁注塑产品为研究对象,由于产品本身复杂的结构及增强型高分子材料特性的影响,容易造成最终制品的收缩不均,产品注塑成型后产生较大的后收缩而导致翘曲变形。本文利用Moldflow软件对产品注塑过程进行模拟仿真,结合扫描测量的产品实际变形结果,验证了Moldflow模拟仿真计算的准确性,并针对性的提出了结构优化的方案,最终实施优化方案并解决了产品翘曲变形导致的安装孔偏心问题。
In this paper,the guide rail lower part of rear bumper is taken as research object,which is large and thin-wall injection molding product.Due to special product structure and characteristics of polymer material,it is easy to caused uneven shrinkage of the final product,and a large post-shrinkage occurs after actual injection product resulting in warping deformation.The injection process of product was simulated by Moldflow in this paper,and combined with the actual product deformation result by scan measurement and verified the accuracy of Moldflow analysis result,then proposed product structure optimization proposal,final optimization proposal was implemented and problem of screw hole eccentricity caused by warping deformation of rear bumper guide rail lower was solved.
作者
范涛
何永华
FAN Tao;HE Yong-hua(Shenyang Minghua Mould&Plastic Technology Co.LTD,Shenyang 110141,China)
出处
《汽车科技》
2023年第3期71-74,共4页
Auto Sci-Tech
