Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Trimless Blank Design for Hot Stamping Process of a Sill Side

실 사이드의 열간 프레스 성형을 위한 트림리스 블랭크 설계

  • 이인규 (한국생산기술연구원 극한제조기술그룹) ;
  • 이성윤 (한국생산기술연구원 극한제조기술그룹) ;
  • 이상곤 (한국생산기술연구원 극한제조기술그룹) ;
  • 안민수 ((주)신영)
  • Received : 2016.06.24
  • Accepted : 2016.06.29
  • Published : 2016.10.31
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Abstract

The trimming process is required for satisfying the dimensions of a final product in the hot stamping process. In general, the mechanical trimming or laser trimming process is applied after hot stamping. However, these processes have several disadvantages such as short tool life and low productivity. Therefore, in this study, the optimal trimless blank shape for the hot stamping process of a sill side was designed to remove the trimming process after hot stamping. In order to design the trimless blank, numerical analysis was performed. Firstly, CFD analysis was carried out to predict the cooling temperature and holding time of the hot stamping process. Then, the optimal trimless blank shape was determined through FE analysis. The effectiveness of the designed trimless blank shape was verified through a hot stamping experiment at an actual industrial site.

Keywords

References

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