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

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Study on the Springback Reduction of Automotive Advanced High Strength Steel Panel

자동차 초고강도 강판 패널의 스프링백 저감에 관한 연구

  • Kim, B.G. ;
  • Lee, I.S. (GM DAEWOO Die & Press) ;
  • Keum, Y.T.
  • 김병규 (한양대학교 일반대학원, 자동차공학과) ;
  • 이인석 ;
  • 금영탁 (한양대학교 기계공학부)
  • Published : 2009.05.07
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Abstract

Very big springback in advanced high strength steel(AHSS) sheets invokes undesired shape defects, which can be eliminated by the tool surface correction method or the forming process control method. Since the springback reduction by controlling the forming process is limited, in this study, the die correction method which finds die correction from the relationship between die design variable and springback is introduced to achieve springback reduction and is applied to the automotive side rail to reduce the springback of 75.8% within the assembly limit of 1 mm.

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