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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Finite element analysis on the hydroforming of bumper stay

하이드로포밍을 이용한 범퍼스테이 FEM 성형해석

  • 강부현 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구소) ;
  • 김봉준 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구소) ;
  • 류종수 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구소) ;
  • 손성만 (성우하이텍(주)) ;
  • 문영훈 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구소)
  • Published : 2004.05.01
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Abstract

A bumper comprises a bumper face, a bumper beam for distributing the load from the impacts applied to the bumper face and reinforcing the bumper, an absorber member interposed between the bumper face and the bumper beam, and a pair of bumper stays which secure the bumper beam to the vehicle body. A conventional bumper stay structure is assembled into several stamped parts, so several processes are needed and the structure is complicated. In this study the bumper stay is applied to the tubular hydroforming which is known to have several advantages such as the reduction of the number of the process and the part weight. The thickness distribution of the tube is mainly considered to evaluate the hydro-formability and the shape of the tube is determined.

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