Development of Design Automation Methodology on Gating System of Die Casting Dies

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Project title

Code/計畫編號

NSC90-2212-E019-015

Translated Name/計畫中文名

壓鑄模具流道系統之設計自動化方法的開發

Project Coordinator/計畫主持人

Shuei-Wan Juang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Mechanical and Mechatronic Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=645828

Year

2001

Start date/計畫起

01-08-2001

Expected Completion/計畫迄

01-07-2002

Bugetid/研究經費

308千元

ResearchField/研究領域

自動化工程(工)
機械工程

因Visual basic程式語言有完善的使用平台及計算能力，且與繪圖軟體Solidworks之介面溝通良好。本計畫以Visual basic為工具，整合工程知識例如流體力學及熱傳學理論及壓鑄業多年來的設計經驗，建構一套壓鑄模具流道系統設計自動化方法，此有助於模具設計人員能快速建構最佳化之壓鑄模具流道系統的3D模型。首先，利用Visual basic程式語言彙整壓鑄機特性及壓鑄合金材料性質成一資料庫，提供流道設計時所需之資訊；接著推導描述壓鑄流動特性所需之數學公式，並應用Visual basic將此數學式子編寫成數值計算分析程式，並依鑄件幾何資料計算澆道系統所需之尺寸；最後將計算之尺寸參數經介面輸入Solidworks繪圖軟體繪出澆道系統3D模型。因此，利用開發之壓鑄模具流道設計自動化方法僅需輸入鑄件實體圖形，其澆道系統3D模型即可立刻自動建構完成。建構之3D模型不僅能提供模具製作所需之幾何數據，同時亦可作為CAE人員進行模流分析所需之幾何資料。藉著壓鑄模具流道系統設計自動化方法之應用，減少設計可能發生之錯誤及降低模具修改及試模之次數是可預期的。因模具設計花費的人力及時間和試模所需次數得以縮短，此有助減少壓鑄模具的開發時程及成本；同時亦因知識經濟概念之導入，使基礎產業轉型，創造高附加價值的模具，達到增強台灣壓鑄模具在國際之競爭力。 As everyone known that the programming language Visual Basic (VB) had well-developed platform as well as computation abilities and good interface with grafting software Solidworks. The project was aimed to develop an automatic design methodology for the gating system of die-casting dies, on which VB was used as a tool to integrate engineering knowledge, such as fluid mechanics and heat transfer, with design experience learned from die casting real world. The developed methodology would help die designers speed up the creation of an optimum 3D solid model of gating system. Firstly, VB would be used to collect and edit all possible die-casting machine characteristics and alloy properties as a database for further references on designing gating system. Then, a series of mathematical equations was formulated to describe the flow behavior of die-casting alloys inside the gating system. The series of equations was programmed using VB to determine the necessitated dimensions of the gating system, which was based on the casting geometric information. Finally, the calculated dimensions were input into the grafting software Solidworks to generate the solid model of the gating system. Consequently, as using the developed automatic design methodology, users only need to input the solid models of a casting. An optimum 3D solid model of the gating system will be created automatically. 3D model of gating system was not only used for the generation of NC code for die machining, but for CAE analysis. By means of the application of developed automatic design methodology, possible mistakes might diminish or vanish on design level. This would also reduce the number of die trial and modification. Owing to cut-down on design manpower as well as time consumption and the number of die trial, less required development time and cost for die casting dies would be expected. Moreover, introducing the concept of knowledge economy into basic industries might take a turn to create high added value on the die industry and strengthen the international competitiveness of die casting dies in Taiwan.

Keyword(s)

壓鑄模
澆道系統
自動化設計
Die casting die
Gating system
Design automation

DSpace CRIS

Development of Design Automation Methodology on Gating System of Die Casting Dies

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