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初低速 鑄造法에 의한 ALDC(S) 8.1의 部品 特性評價에 關한 硏究

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Author(s)
崔現昶
Issued Date
2004
Abstract
In the slow speed die casting process, the casting defects due to melt flow should be controlled in order to obtain sound casting products. The casting defects that are caused by molten metal were cold shut formation, entrapment of air, gas, and inclusion. But the control of casting defects has been based on the experience of the foundry engineers
In this paper, the computer simulation analyzed the flow of molten metal. The quantitative analyses which proposed the effective mold design was executed Flow patterns of 0.15-0.16m/s molten metal in 15mm thin plate casting were investigated in order to optimize die-casting process. As increasing ingate velocity in thin plate casting, cold shot was decreased.
In this diagram the calculation is made to insure that the liquid metal is injected at the right velocity range and that the filling time is small enough to prevent premature freezing. The parameters of runner shape that affected on the optimized conditions that was calculated with simple equation were investigated
Alternative Title
A Study on the ALDC(S)8.1 Part Property Evaluation of Low Speed Diacating Method
Alternative Author(s)
Choi, Hun-Chang
Affiliation
朝鮮大學校 産業大學院
Department
산업대학원 기계공학과
Advisor
車龍勳
Awarded Date
2005. 2
Table Of Contents
목차
List of figures = Ⅰ
List of tables = Ⅲ
List of photographs = Ⅲ
Nomenclatures = Ⅳ
Abstract = Ⅵ
제 1 장 서론 = 1
1.1 연구배경 및 목적 = 1
1.2 연구방법 = 5
1.3 기대효과 = 6
제 2 장 관련이론 = 7
2.1 열전달의 기본 미분 방정식 = 7
2.2 유동해석의 지배방정식 = 10
2.3 VOF 법 = 12
2.7 Die casting의 원리 = 13
제 3 장 실험 = 15
3.1 실험 = 15
3.2 자동차 밸브바디 중간플레이트 금형 설계 = 21
3.3 다이캐스팅 금형 = 35
3.4 해석 및 해석과장 = 40
제 4 장 결과 및 고찰 = 49
4.1 유동해석 결과 = 49
4.2 응고온도 분포 = 54
4.3 조직사진 관찰 = 62
제 5 장 결론 = 72
REFERENCES = 74
Degree
Master
Publisher
朝鮮大學校 産業大學院
Citation
崔現昶. (2004). 初低速 鑄造法에 의한 ALDC(S) 8.1의 部品 特性評價에 關한 硏究
Type
Dissertation
URI
https://oak.chosun.ac.kr/handle/2020.oak/1891
Appears in Collections:
Engineering > Theses(Master)(산업기술창업대학원)
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