한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제28권4호
  • /
  • Pages.496-504
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  • 2011
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

유한요소해석을 이용한 차체시작부품 프레스성형 공정 개선

Improvement of the Stamping Process for Sheet Metal Prototypes of an Auto-body with Finite Element Analysis

  • 김세호 (대구대학교 기계.자동차공학부)
  • Kim, Se-Ho (School of Mechanical and Automotive Engineering, Daegu University)
  • 투고 : 2010.12.15
  • 심사 : 2011.02.18
  • 발행 : 2011.04.01
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초록

This paper introduces a CAE-based design procedure in the press forming process for the fabrication of sheet metal parts used in proto-cars. The finite element analysis reveals formability problems during the forming process of a floor member and a front cross member that constitute a rear floor assembly. The study proposes the modification of the initial blank shape or intermediate trimming of the product to prevent failure during forming. It is confirmed by the tryout process as well as the finite element analysis that sound prototype can be obtained with the modified design. The finite element analysis result also provides fairly good prediction of springback amounts used for the post-compensation of the product.

키워드

참고문헌

  1. Kim, T. Y., "Analysis of success factor to reduce the new car developing period by automobile industry," M.B.A. Dissertation, Dept. of Business Administration, Kyungpook National University, 2010.
  2. Hill, R., "A Theory of the yielding and plastic flow of anisotropic metals," Proc. The Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 193, pp. 281-297, 1948. https://doi.org/10.1098/rspa.1948.0045
  3. ESI, "PAM-STAMP 2G User's Guide," 2009.
  4. Altair Engineering, "Hyperform User's Manual Version 9," 2008.
  5. Kim, S. H., Jung, D. G. and Choi, H. J., "Standard construction of CAE and evaluation processes for stamping of rear floor panel," Proc. KSPE Spring Conference, pp. 1307-1308, 2010.
  6. Jung, D. W., Ko, H. H., Lee, C. H. and You, H. Y., "Finite element analysis of sheet metal forming process using shell element," J. Korean Society for Precision Engineering, Vol. 23, No. 1, pp. 152-158, 2006.