Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Research on the Cooling Characteristics of Hot Stamping Process with Thermal Conductivity Die Steel

금형 열전도율에 따른 핫스탬핑 공정 냉각 특성 연구

  • Received : 2018.03.23
  • Accepted : 2018.05.14
  • Published : 2018.06.01
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Abstract

In this study, the cooling characteristics of dies were investigated in the hot stamping process of front pillars for automobile. Two identical dies were manufactured out of tool steels with different thermal conductivities. The dies were designed with curved channels for uniform cooling of the blank. Computational fluid dynamics (CFD) simulations were also carried out, which can consider the heat transfer among the coolant, die, and blank. Measured and simulated thermal histories of dies were compared, and it was shown that high conductivity tool steel has an excellent cooling capacity compared to conventional tool steel.

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References

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