지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2010.1
- 수록면
- 1,001 - 1,007 (7page)
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초록· 키워드
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The hot press forming process for automotive components can produce crash-resistant parts with high strength,minimum springback and reduced sheet thickness using martensitic transformation of sheet metal. In this study, the hot press bending (HPB) process was optimized to obtain high strength and dimensional accuracy of bent components. Heating temperature and soaking time of the blank were optimized at 900 °C and 10min, respectively. Also, the cooling channel in the bending dies necessary to obtain full martensitic transformation of the bent part at high cycle of repetition was determined by using design of experiment and FE(finite element)-simulation. Significant factors that influence the cooling intensity were the distance between the cooling channel and the die surface, and the flow condition. The result of FE-simulation and experiments with the design based on injection molding showed that bent components with high strength and dimensional accuracy without bainite transformation can be obtained by this optimized HPB process.
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