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고압 다이캐스팅 공법을 이용한 마그네슘 시트프레임 개발
유명한(MyeongHan Yoo),문민석(MinSeok Moon),송준혁(JoonHyuk Song),오상엽(SangYeob Oh),오제하(JeHa Oh),양성모(SungMo Yang),강신재(SinJae Kang) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
In this study, the express bus seat-frame components were substituted by the Mg alloy from the steel for the light weight. Mg alloy seat-frame was manufactured by the high pressure die-casting process. The designs of the existing steel alloy’s seat-frame were analyzed to check the safety requirements, and then were designed for a high pressure die-casting process with considering the fluidity of Mg alloy. The die-casting conditions were decided with the solidification and fluidity analysis, and die-casting mold was made with this results. Normally, the seat-frame was consisted of arm-rest and seat-back-frame. To confirm the Mg seat-frame safety, it was that mechanical property, vertical load, and forward moment, and endurance fatigue were simulated and tested. Finally, the light-weight Mg alloy seat-frame was made by high pressure die-casting with the seat-back-frame 35% weight-reduction and the arm-rest 30% weight-reduction compare to the steel alloy seat-frame.