镜框流道设计与进浇位置之仿真分析

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镜框流道设计与进浇位置之仿真分析
Simulation of the runner and gate design for eyeglass frame
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/ o* z5 }1 j; w  G! }刘佳营 、萧宏玮 、杜秋慧 、萧乃仁
5 g7 Y: _  u6 M* n" OChia-Ying Liu1,Hung-Wei Hsiao1 , Chiu-Hui Tu 2 , Nai-ren Hsiao3
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1 南台科技大学机械工程系副教授
Department of Mechanical Engineering, Southern Taiwan University
4 Q  r6 m" Z6 D. Z2 南台科技大学机械工程系研究生
Department of Mechanical Engineering, Southern Taiwan University
/ P9 p4 b" [2 c2 y$ @! r3 中华医事科技大学职业安全卫生系讲师
: v2 V% O: l( mDepartment of Occupational Safety and Health, Chung Hwa University of Medical Technology
* B2 J. P1 A- |  m4 科盛科技股份有限公司 Core Tech System Co., Ltd

中文摘要
3 ?: l# L- w+ H流道设计与进浇口位置除了关系到充填时间的长短，更直接影响充填是否平衡。充填如果时间过长， 会导致产品生产速度过慢，造成成本提高；而充填不平均，会使往后保压、冷却阶段无法发挥其功效，造 成收缩不均与应力集中等问题发生，导致产品质量不佳。本研究利用 Moldex3D 模流分析软件仿真后，得知 流道的设计以直线型的流道较为优异，充填时间较 S 型流道节省约 20%。而采用较佳的进浇口设计可使得 翘曲变形量约减 40%。

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4 P8 }# ?& t$ @Besides filling duration, runner design and gate location matter a lot to flow balance as well. Longer filling time will lengthen production cycle time and further increase the cost; unbalanced flow will decrease the effect of packing and cooling, cause uneven shrinkage and stress concentration, and result in bad product quality. In this study, a CAE simulation tool, Moldex3D, is applied to investigate if the runner design and gate location are appropriate to the product. Through the simulation result, it shows the material in a linear runner will be saved by
20% than the original S-shaped one; moreover, an optimized gate location will contribute 40% reduction of warpage.
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关键词: 流道、进浇口、Moldex3D、充填、翘曲。