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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Springback for the Warm 2D Draw-bending of Steel Sheets

박판의 온간 2차원 드로오 벤딩에서의 스프링백

  • 이상무 (성균관대학교 기계공학부 대학원) ;
  • 장성호 (성균관대학교 기계공학부 대학원) ;
  • 최이천 (기아자동차(주)) ;
  • 허영무 (한국생산기술연구원) ;
  • 서대교 (성균관대학교 기계공학부)
  • Published : 2001.10.01
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Abstract

The purpose of this study is to investigate the characteristics of springback for various process conditions of the 2D draw-bending operation. The process variables are the forming temperature, the geometry of tools such as punch profile radius(Rp) and die profile radius(Rd). Especially, in order to control the springback, the use of the warm forming method is applied. For the warm draw-bending, five steps of temperature ranges, from room temperature to $200^{\circ}C$, were adopted. And two kinds of steel sheets, namely SCP1 and TRIP(transformation-induced plasticity), the newly developed high strength Steel, were adopted. As a result, the springback was affected by the elevated temperature and the geometry of tools in two kinds of steel sheets.

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