Aluminum High Vacuum Die-casting process has become more prevalent in automotive manufacturing industry which require high productive rate, weldable process and heat treatment process. However, high pressure die castings usually contain gas porosity due mainly to the entrapment of air or gas in the die during the high speed injection of the molten metal into the die cavity. Vacuum block system with disk spring was developed and vacuum chanel was optimized with numerical flow analysis. The porosity of die castings was analyzed by X-ray CT, and the effect of porosity on the mechanical properties was analyzed by hardness and tensile test. Tensile strength was improved 49.5% for 50mbar high vacuum die-casting process compare then 300mbar. And then, Surface property was analyzed with plunger velocity and fast shot set point.
목차
ABSTRACT 1. 서론 2. 본론 2.1. 진공블럭 시스템 설계 및 진공 채널 설계 2.2. 고진공 다이캐스팅 공정 연구 3. 결과 3.1. 진공블럭 시스템 설계 및 진공 채널 설계 3.2. 진공도에 따른 인장강도, 연신율 비교 3.3. 고진공 다이캐스팅 공정 연구 4. 결론 후기 References
키워드
고진공 다이캐스팅경량화일체형 성형원판 스프링형 진공블럭플런저 고속전환위치High vacuum die-castingLight-weightAll-in-one processVacuum block system with disk springPlunger velocity and fast shot set point
저자
유명한 [ Myeong-Han Yoo | Korea Institute of Carbon Convergence Technology ]
문민석 [ Min-Seok Moon | Korea Institute of Carbon Convergence Technology ]
오제하 [ Je-Ha Oh | Korea Institute of Carbon Convergence Technology ]
송준혁 [ Joon-Hyuk Song | Korea Institute of Carbon Convergence Technology ]
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