STUDY ON THE WARPAGE CAUSED BY SHARP CORNER EFFECT IN GLASS FIBERREINFORCED PA66 INJECTION-MOLDED PART

Abstract

Abstract: Through analyzing an electrical molding part produced with glass fiber reinforced PA66 by Moldflow, the reason of warpage deformation caused by sharp corner effect was found. Then the best gate location was obtained under different gate number by CAE. The result showed that the warpage caused by the sharp corner effect significantly decreased by 56.216% by three-gating injection mold, and better fiber orientation was obtained on the sharp corner.

Key words: glass fiber, sharp corner effect, warpage deformation, fiber orientation

CLC Number:

TB332

JIAN Fa-ping, WAN Jun, DU Ji-tao. STUDY ON THE WARPAGE CAUSED BY SHARP CORNER EFFECT IN GLASS FIBERREINFORCED PA66 INJECTION-MOLDED PART[J]. Fiber Reinforced Plastics/Composites, 2016, 0(6): 72-75.

References

[1] 崔伟清, 黄海阔, 董良太. 基于Moldflow的电蚊香加热器上盖翘曲的优化分析[J]. 塑料工业, 2013, 11(41): 33-35.
[2] 张继祥, 秦海涛, 钟厉, 等. 薄壁件注塑翘曲变形综合优化分析[J]. 塑料工业, 2014, 5(42): 56-61.
[3] 陈乐平. 基于CAE的注塑件翘曲变形优化研究[J]. 塑料, 2012, 3(41): 94-98.
[4] 张信歌, 孙玲. 大型浇注薄壁件的翘曲优化[J]. 机械设计与制造, 2014(9): 102-105.
[5] 潘柏松, 龚惠玲, 刘红. 基于正交试验法的注塑工艺多目标优化设计[J]. 浙江工业大学学报, 2007, 3(35): 308-312.
[6] 段新豪, 张甲龙, 孙见龙. 平板手机后盖注塑成型CAE模拟与正交优化[J]. 塑料科技, 2014, 8(42): 99-102.
[7] 王睿鹏, 孟庆霞. 基于Moldflow与正交试验的注塑工艺参数优化设计[J]. 宁夏工程技术, 2011, 4(10): 326-329.
[8] Chen W.C., Wang M.W., Fu G.L., et al. Optimization of plastic injection molding process via Taguchi′s parameter design method, BPNN, and DFP[J]. Proceedings of the Seventh International Conference on Machine Learning and Cybernetics, 2008(6): 3315-3321.
[9] Xia Wei, Luo Bin, Liao Xiaoping. An enhanced global optimization method based on Gaussian process and its application of warpage control in injection molding[J]. Proceedings of the 2010 IEEE International Conference on Information and Automation, 2010:970-975.
[10] 刘广华, 周滨, 卜继玲, 等. 玻璃纤维增强PA66厚壁注塑件翘曲变形研究[J]. 工程塑料应用, 2012,1(40):43-46.
[11] 熊爱华, 柳和生, 黄兴元, 等. 工艺参数对短玻璃纤维增强PP复合材料注射压力和翘曲变形的影响[J]. 高分子材料科学与工程, 2012,6(28):163-168.
[12] 胡严, 李吉泉. 玻璃纤维对注塑制品翘曲变形的影响[J]. 轻工机械, 2012, 3(30): 163-168.
[13] 孟兵, 徐静, 苏艳红, 等. “角落效应”对塑件翘曲变形的影响[J]. 工程塑料应用, 2015, 7(43): 67-69.
[14] 眭俊煜, 张晓岩, 李厚佳. 电器开关用支座多向抽芯注塑模具设计[J]. 塑料科技, 2014, 9(42): 94-96.
[15] 左大平, 张益华, 芮玉龙. 玻璃纤维增强PA66制品翘曲变形的研究[J]. 工程塑料应用, 2005, 12(3): 23-25.
[16] 熊爱华, 柳和生, 黄兴元, 等. 纤维参数对纤维取向及塑件变形影响模拟研究[J]. 材料科学与工艺, 2012, 3(20):132-138.