소성∙가공 (Transactions of Materials Processing)

  • 제26권1호
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  • Pages.5-10
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  • 2017
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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사각판재 보론강을 사용한 유체냉각공정에서의 열변형 해석

Thermal Deformation Simulation of Boron Steel Square Sheet in Fluid Cooling Process

  • 투고 : 2016.07.06
  • 심사 : 2016.12.29
  • 발행 : 2017.02.01
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초록

Fluid cooling is one of the manufacturing processes used to control mechanical properties, and is recently used for hot stamping of automobile parts. The formed part at room temperature is heated and then cooled rapidly using various fluids in order to obtain better mechanical properties. The formed part may undergo excessive thermal deformation during rapid cooling. In order to predict the thermal deformation during fluid cooling, a coupled simulation of different fields is needed. In this study, cooling simulation of boron steel square sheet was performed. Material properties for the simulation were calculated from JMatPro, and three convection heat transfer coefficients such as water, oil and air were obtained from the experiments. It was found that the thermal deformation increased when the difference of cooling rate of sheet face increased, and the thermal deformation increased when the thickness of sheet decreased.

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참고문헌

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