臺灣博碩士論文加值系統

摘要
本論文以物件導向技術為基礎，使用Visual Basic程式語言為工具，整合工程理論知識及壓鑄業多年來的設計經驗，開發一套物件導向之壓鑄模鑄造方案設計系統，協助模具設計人員能快速建構最佳化之壓鑄模鑄造方案的3D模型。首先，利用Visual Basic 程式語言將壓鑄合金材料性質及壓鑄機特性彙整成資料庫，提供鑄造方案設計時所需之資訊；接著推導描述合金熔湯流動特性所需之數學理論公式，並應用Visual Basic將理論式子編寫成數值計算程式，然後依照鑄件幾何資料計算鑄造方案所需之尺寸；最後將計算所得之尺寸參數經介面輸入SolidWorks繪圖軟體繪出鑄造方案3D模型。
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。藉著物件導向之壓鑄模鑄造方案設計系統的應用，將減少設計可能發生之錯誤和降低模具修改及試模之次數。因模具設計花費的人力及時間和試模所需次數得以縮短，此有助減少壓鑄模的開發時程及成本。

Abstract
The thesis was aimed to develop an object-oriented gating design system for die-casting moulds, on which the principium of object-oriented technology and Visual Basic(VB) was used as a tool to integrate engineering theoretical knowledge with design experience learned from die casting real world. The developed methodology would help die designers speed up the creation of an optimum 3D model of gating system. Firstly, VB was used to collect and edit all possible alloy properties and die-casting machine characteristics 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 3D model of the gating system.
3D model of gating system is not only used for the generation of NC code for die machining, but for CAE analysis. By means of the application of developed object-oriented gating design system, it might diminish or vanish possible mistakes on design level. This would also reduce the number of mould trials and modifications. Owing to cut-down on design manpower as well as time consumption and the number of mould trials, less required development time and cost for die casting moulds would be expected.

目錄
中文摘要…………………………………………………………i
英文摘要………………………………………………………………ii
目錄…………………………………………………………………iii
圖目錄…………………………………………………………………vi
表目錄…………………………………………………………………x
第一章 緒論…………………………………………………………1
1.1研究背景………………………………………………………1
1.2研究動機………………………………………………………1
1.3研究目標………………………………………………………2
1.4論文結構………………………………………………………3
第二章 文獻回顧……………………………………………………..4
2.1物件導向技術…………………………………………………4
2.2壓鑄模鑄造方案設計軟體……………………………………5
2.3 CAE模流分析………………………………………………….7
第三章 壓鑄模鑄造方案設計理論……………………………………9
3.1鎖模力…………………………………………………………9
3.2 PQ2原理………………………………………………………10
3.3流道系統………………………………………………………14
3.4給料系統………………………………………………………15
第四章 系統架構……………………………………………………29
4.1軟硬體設備……………………………………………………29
4.2系統功能及架構………………………………………………29
4.3合金資料庫……………………………………………………30
4.4壓鑄機資料庫…………………………………………………30
4.5最佳化澆口截面積模組………………………………………30
4.6流道尺寸模組…………………………………………………31
4.7給料尺寸模組…………………………………………………32
4.8資料輸入/輸出模組 …………………………………………33
4.9程式計算流程…………………………………………………34
第五章 實例驗證……………………………………………………49
5.1物件導向之壓鑄模鑄造方案設計系統………………………49
5.2人工設計………………………………………………………54
5.3模流分析………………………………………………………54
第六章 結果與討論…………………………………………………67
6.1模流分析結果…………………………………………………67
6.2與人工設計比較………………………………………………68
6.3本設計系統的限制……………………………………………69
第七章 結論…………………………………………………………86
7.1結論……………………………………………………………86
7.2未來發展方向…………………………………………………87
參考文獻………………………………………………………………88

參考文獻
1 工業材料─輕金屬特刊，工業技術研究院 工業材料研究所，2001/6月
2 物件導向凌群電腦股份有限公司 編著，物件導向技術與實例，儒林圖書股份公司，1995
3 James Martin & James J. Odell 著，陳玄玲 譯，物件導向分析與設計，松崗電腦圖書資料股份有限公司，1994
4 “CASTFLOW”, DMT.
5 “DCRF”, The North American Die Casting Institute.
6 “Runner Design”, Worked Examples, The American Die Casting Institute, 1986
7 “Runner Design”, The American Die Casting Institute, 1987
8 “Feed Design”, Worked Examples, The American Die Casting Institute, 1986
9 “Feed Design”, The American Die Casting Institute, 1987
10 黃士宗 撰，壓鑄模具方案設計專家知識庫系統建立，國立成功大學材料科學工程學系，1997
11 Flow Science, Inc.,FLOW-3Dâ User’s Manual, Version 7.7.1, 2001
12 K.Venkatesan & R.Shivpuri, NADCA Transactions — T95-026, 1995, p.67-74.
13 洪榮哲 編譯，壓鑄模具設計與製造，全華科技圖書股份有限公司，1996
14 莊水旺 著，FLOW-3D軟體數值模擬分析教育訓練─訓練教材，2000
15 莊水旺 著，經濟部工業局九十年度工業技術人才培訓計畫講義─壓鑄模具設計實務，2001
16 Bruce R. Munson, Donald F. Young, Theodore H. Okiishi, Fundamentals of Fluid Mechanics, JohnWiley & Sons, Inc., 1998
17 潘完曾 主編，壓鑄模設計手冊，北京 機械工業出版社，1998