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Giga급 강재를 활용한 자동차 차체 컨셉 및 경량부품 개발
김홍기(H.G. Kim),최한호(H.H. Choi),임지호(J.H. Lim),조열래(Y.R. Cho),유병주(B.J. Yoo) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Concept of steel intensive light weight BIW composed by giga tensile strength grades of TWIP, DP and HPF(hot press forming) materials was developed. Vehicle’s weight was reduced as much of 20% compared with the bench marking vehicle of 223.8㎏, and it showed good performance of collision and roof crush as well NVH. And weight reduced automotive parts that construct the concept were developed by adoption of various forming method such as hydroforming, stamping and hot press forming method.