Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Experimental Verification of Equivalent Drawbead Model and Application to Auto-Body Stamping Analysis

등가 드로비드 모델의 실험적 검증 및 차체 스탬핑 해석에 적용

  • 문성준 (한양대학교 일반대학원, 자동차 공학과) ;
  • 이자연 (GM대우 Die & Press, 금형기술팀) ;
  • 금영탁 (한양대학교 기계공학부)
  • Published : 2009.08.01
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Abstract

An equivalent drawbead model(EDM) for sheet metal forming analysis, which replaces complex drawbead geometries with drawbead forces in modeling the stamping dies with finite elements, is experimentally verified and applied to the numerical simulation of auto-panel stamping process. The drawbead restraining and opening forces of elliptical drawbead, circular drawbead, square drawbead, and step drawbead are obtained by performing the drawbead pulling test and compared with those of EDM and commercial code models(CCM). Better agreement with experimental measurements is found in EDM than CCM. Furthermore, the excellence of EDM is demonstrated in its application to the auto-body stamping analysis.

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References

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