한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제30권10호
  • /
  • Pages.1111-1117
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  • 2013
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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성형공법에 따른 초고강도 모자형 박판부품 형상정밀도 평가

Quantitative Evaluation of Shape Accuracy in a Hat-type Product with UHSS according to the Forming Procedure

  • 최병현 ((주)화신 기술연구소) ;
  • 김세호 (대구대학교 기계.자동차공학부) ;
  • 김흥규 (국민대학교 자동차공학과)
  • 투고 : 2013.08.19
  • 심사 : 2013.09.16
  • 발행 : 2013.10.01
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초록

In this paper, the shape accuracy of the stamped hat-type product is quantified and analyzed with ultra high strength steel (UHSS) sheets. The shape of the hat-type product is designed in order to simplify the geometry of the side sill and the stamping methodology is proposed in order to verify the effect of the stamping procedure on the springback amount. Experiments and finite element analyses are conducted with four kinds of the forming sequences. The springback amounts are measured and compared according to the forming procedure with the embossing shape. Experimental result in company with analysis one illustrate that the springback amount is reduced with embossing in the padding operation. They also fully demonstrates the proposed forming procedure and the analysis method can be effectively applied to the process design for producing parts with ultra high strength steel.

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참고문헌

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