한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)

한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
권호 표지

차체 성형용 판재의 U 벤딩시의 스프링백에 관한 연구

Investigation of Springback for the U-bending of Steel Sheets for Automotive body panels

  • 김성환 (성균관대학교 기계공학부 대학원) ;
  • 신장모 (성균관대학교 기계공학부 대학원) ;
  • 장성호 (성균관대학교 기계공학부 대학원) ;
  • 서대교 (성균관대학교 기계공학부)
  • 발행 : 2001.10.01
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초록

The purpose of this paper is to investigate the characteristics of springback for the U-bending of steel sheets for automotive body panels. This study presents the experimental and analytical approach for the two kind of steel sheets, namely SCP1 and TRIP(Transformation-induced plasticity), the newly developed high strength steel. The adopted thicknesses are 0.8, 1.2 and 1.6 mm for SCP1, and 1.0 mm for TRIP. The punch profile radii are designed in 3, 6, 9, 12, and 15 mm. As results, the springgo aspect could be observed experimently in the small punch profile radius. The degree of springback for TRIP sheets was more than the SCP1 sheets.

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