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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Design of Drawbeads for Advanced High Strength Steel Sheet Forming

초고강도 강판 성형용 드로비드 설계

  • 김병규 (한양대학교 일반대학원, 자동차공학과) ;
  • 정지용 (한양대학교 일반대학원, 자동차공학과) ;
  • 김동진 (POSCO 기술연구소) ;
  • 김교성 (POSCO 기술연구소) ;
  • 금영탁 (한양대학교 기계공학부)
  • Published : 2009.10.08
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Abstract

In this study, the guideline for designing the drawbeads used in the stamping dies for advanced high strength steel (AHSS) sheets is investigated. In the drawbead drawing test, the drawbead forces for verifying the equivalent drawbead model(EDM) and the sheet strains for finding marginal strains from $FLC_0$ are measured. In the finite element analysis (FEA), the bending allowance, R/t, is obtained. Based on the forming and bending allowances obtained, the design guideline of the drawbead for determining height and width, which depends on the restraining force and the forming allowance, is prepared by using EDM.

Keywords