一種門把手壓鑄模具之模流數值分析

Numerical Mold Flow Analysis for a Door-Handle Die-Casting Mold

何承恩(Cheng-En Ho)

指導教授 ： 陳建霖

義守大學/理工學院/機械與自動化工程學系/碩士(2015年)

https://doi.org/10.6343/ISU.2015.00216

摘要

模具開發是壓鑄行業裡的基礎，因此壓鑄件品質提升的源頭不外乎是優良的模具，而應用電腦輔助設計與分析於模具開發則是最有效率的做法。本研究使用模流分析軟體，並結合壓鑄模具的設計實務，探討一種門用把手之壓鑄模具設計的優化條件。本文完成3D實體建模後匯入模流軟體模擬分析，並應用模流分析軟體分析模具流道及流向，確立溢料井、排氣道位置，同時依造PQ² 圖求算出適合的澆口大小。本文探討關於把手壓鑄件的充填入料方式共有兩種；由數值模擬與實驗驗證得知，側邊入料得到的把手鑄件品質較尾端入料佳，因此最後以側邊入料方式配合溢料井進行改良設計，並用此技術於把手的量產，如此可以提高此產品的生產良率。

關鍵字

門把手 ； 壓鑄模具 ； 模流分析

並列摘要

Mold research and development is the basic for die-casting industry, therefore the well-designed mold is the key to a successful product. A very efficient way to develop a mold is the application of computer aided design and analysis. This study aims to exploit the better design process on the mold for a door handle by combing a mold-flow numerical software and practical design experiences in die casting mold. After completing 3D solid modeling, the mesh is imported into mold-flow software for numerical simulation. The mold runner and flow pattern are analyzed, locations for overflow well and air vent are determined, and the size for gates is calculated by PQ2. In this thesis, two types of injection way for handle die casting are studied. By numerical simulation and experimental validation, we found that the quality of the casting product by side injection is better than that by rear injection. Finally, we show the design improvement for the case of side-injection type. It is expected that the yield rate for door-handle casting by side injection type will be higher.

並列關鍵字

Door handle ； Die-casting mold ； Mold flow analysis

參考文獻

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