摘要
目前光学塑料非球面零件在各种光电仪器中的应用越来越普遍。针对在注射成型光学塑料零件时对质量的特殊要求，本文介绍了利用注射成型ＣＡＥ（ｃｏｍｐｕｔｅｒａｉｄｅｄｅｎｇｉｎｅｅｒｉｎｇ）软件Ｍｏｌｄｆｌｏｗ，通过对塑料填充过程、保压过程和冷却过程的模拟分析，对在成型中各工艺参数和模具结构影响光学塑料零件的残余应力和收缩率等最终质量问题进行了研究。从工艺参数的选取和模具结构设计等方面，提出了如何改善成型光学塑料零件质量的措施，给出了模具面形成型前补偿的方法。通过采用最大实体原则，利用Ｍｏｌｄｆｌｏｗ分析结果进行模具面形补偿最优化计算。
The optical plastic aspherical elements are used widely in opto electronic devices. For the special request of the optical injection molded elements, in the light of the CAE(computer aided engineering) software Moldflow, the effects of the several injection molding processing parameters and the mold construct on the final quality of optical injection molded elements, such as residual stress and shrinkage ratio, are studied, by analyzing the filling, packing and cooling processes by the computer simulation method. The surface shape compensation method before injection molding is presented based on the analyzed result of Moldflow with the maximum material principle.
出处
《光学技术》
EI
CAS
CSCD
1999年第4期84-87,共4页
Optical Technique
关键词
CAE
光学塑料零件
最优化
面形补偿
注塑
injection molding
CAE
optical plastic elements
optimization
surface shape compensation
