[1]尤芳怡,戴秋莲,刘晶峰.Moldflow辅助壳形注塑件变形分析及其加强筋的优化设计[J].华侨大学学报(自然科学版),2013,34(4):376-379.[doi:10.11830/ISSN.1000-5013.2013.04.0376]
　YOU Fang-yi,DAI Qiu-lian,LIU Jing-feng.Warp Analysis and Rib Optimization of the Shell-ShapedInjection Molding Part Based on Moldflow[J].Journal of Huaqiao University(Natural Science),2013,34(4):376-379.[doi:10.11830/ISSN.1000-5013.2013.04.0376]
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Moldflow辅助壳形注塑件变形分析及其加强筋的优化设计()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第4期
页码:
376-379
栏目:
出版日期:
2013-07-20

文章信息/Info

Title:
Warp Analysis and Rib Optimization of the Shell-ShapedInjection Molding Part Based on Moldflow
文章编号:
1000-5013(2013)04-0376-04
作者:
尤芳怡;  戴秋莲;  刘晶峰
华侨大学 机电及自动化学院, 福建 厦门361021
Author(s):
YOU Fang-yi;  DAI Qiu-lian;  LIU Jing-feng
College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China
关键词:
壳形件;  注射成型;  变形;  加强筋;  Moldflow软件
Keywords:
shell part;  injection molding;  warp;  rib;  Moldflow software
分类号:
TQ320
DOI:
10.11830/ISSN.1000-5013.2013.04.0376
文献标志码:
A
摘要:
基于Moldflow软件,通过改变塑件上加强筋的厚度、高度及浇口位置,对典型壳形注塑件的收缩和翘曲变形进行模拟成型分析,并优化设计加强筋.结果表明:加强筋会减小塑件的收缩率并影响翘曲变形量,塑件翘曲变形受加强筋的厚度影响比较大,且与浇口形式及其位置有关,加强筋的高度变化对变形影响不显著.加强筋的厚度与塑件基体壁厚不同,造成收缩不均导致翘曲变形,变形量随着加强筋厚度的加大,呈现先增大后减小的趋势.通过选取合理的浇口位置及加强筋尺寸,可以利用塑件基体部分的翘曲与加强筋所引起的翘曲相互抵消,从而减小塑件的总体变形量.
Abstract:
The ribs of the shell-shaped injection molding part were optimized by means of Moldflow software. The parts with different height and thickness and different injection gates were simulated, and the warpage and the shrinkage under various parameters were got. The results showed that rib to reduce the shrinkage of the part and affect the warpage as well. The thickness of the rib is the main factor to increase warpage, the warpage is related to the form and location of the gate. And the height of the rib hasn’t the significant effect on the warpage. Warp was caused due to the different thickness of the rib and the part, and it increases firstly and then decreases with the increase of the thickness of the rib. The warpage caused by rib can offset against that caused by the part when the gate be correctly placed as well as the ribs be optimally designed. Thus the overall amount warpage of the plastic parts is reduced.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2012-05-12
通信作者: 尤芳怡(1971-),女,副教授,博士,主要从事模具设计及制造、材料加工过程检测与分析的研究.E-mail:fangyiy@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(51175792); 中央高校基本科研业务费专项基金资助项目(JB-ZR1209)
更新日期/Last Update: 2013-07-20