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정밀주조 다이캐스팅을 이용한 자동차 레귤레이터 하우징 성형해석에 관한 연구
성백섭(Back-Sub Sung),김미애(Mi-Ae Kim),차용훈(Yong-Hoon Cha),김정대(Jung-Dae Kim),김덕중(Duck-Joong Kim),이연신(Youn-Sin Lee) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
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 thesis, the computer simulation analyzed the flow of molten metal. The quantitative analyses which proposed the effective mold design was executed Flow patterns of 0.1-0.16㎧ molten metal in 15㎜ thin plate casting were investigated in order to optimize die-casting process. As increasing ingate velocity in thin plate casting, cold shot was decreased. The parameters of runner shape that affected on the optimized conditions that was calculated with simple equation were investigated. These die casting process control techniques of automobile regulator housing parts have achieved good agreement with the experimental data of tensile strength, hardness test, and material structure photographies satisfactory results.