DOI QR코드

DOI QR Code

차량용 열차단판의 면품질 개선을 위한 성형해석 기반 금형면 설계

Analysis-based Die Face Design for the Improvement of Surface Quality for a Heat Protect Panel of an Automobile

  • 김기풍 (한국생산기술연구원) ;
  • 김세호 (대구대학교 자동차.산업.기계공학부) ;
  • 이동길 (한국생산기술연구원 동력부품지원센터) ;
  • 장경천 (한국생산기술연구원 동력부품지원센터)
  • 발행 : 2008.07.01

초록

This paper concerns the die face design for a heat protect panel aided by the finite element forming analysis in order to eliminate the surface defect and to improve the surface quality. The CAE procedure of the stamping process is introduced in order to reveal the reason of surface inferiorities and to improve surface quality. Complicated shape of the product induces the surface inferiorities such as wrinkling due to the insufficient restraining force of the forming blank and the non-uniform contact of the blank with the tools. This paper proposes a new guideline for the die design which includes the modification of tool shapes and addition of the draw-beads on the tool surface for ensuring the increased the restraining force with the uniform contact condition. The effectiveness of the proposed design is verified by the forming analysis and is confirmed by the tryout operation in the press shop. The analysis and test results show that the modified process parameters such as tool shapes and draw-beads can reduce the tendency of wrinkling and improve surface quality.

키워드

참고문헌

  1. D. F. Eary, E. A. Reed, 1974, Techniques of Pressworking Sheet Metal - An Approach to Die Design, Prentice-Hall, Inc., New Jersey
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  5. J. S. Park, S. H. Kim, H. Huh, 2002, Elasto-plastic finite element analysis of drawbead forming for evaluation of equivalent boundary conditions in sheet metal forming - part II : application to the front door panel forming process, Transactions of Materials Processing, Vol. 11, No. 6, pp. 513-518 https://doi.org/10.5228/KSPP.2002.11.6.513
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피인용 문헌

  1. Tool and process design for progressive forming of an automotive bracket part using finite element analysis vol.30, pp.6, 2016, https://doi.org/10.1007/s12206-016-0520-z