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알루미늄 고진공 다이캐스팅 공법을 적용한 전륜 서브프레임 개발
윤석진(Sukjin Yoon),김성구(Seonggoo Kim),김규록(Gyurok Kim),정의근(Euikeun Jeong),이용욱(Yonguk Lee),조영건(Younggun Cho) 한국자동차공학회 2020 한국자동차공학회 학술대회 및 전시회 Vol.2020 No.11
In the automobile industry, many parts are manufactured by applying aluminum materials to improve fuel efficiency and reduce vehicle weight. In particular, in order to design and manufacture future electric vehicles, the weight reduction of vehicles is receiving more and more challenges. In the case of a suspension part, since it is located in the lower part of the vehicle, it has a great advantage of improving fuel economy due to weight reduction. This paper describes the development stage of a front wheel subframe with a welded structure of aluminum high vacuum die casting method and extrusion method. The result of the aluminum subframe study showed that the weight was reduced by 5.6㎏ and natural frequency was improved by 16㎐ compared with the steel subframe.