한국주조공학회지 (Journal of Korea Foundry Society)

  • 제32권2호
  • /
  • Pages.65-74
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  • 2012
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  • 1598-706X(pISSN)
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  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
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금형 충전 해석을 이용한 연료전지 분리판 진공 다이캐스팅 금형 설계 방안 및 실험 검증

Vacuum Die Casting Mold Design of Fuel Cell Bipolar Plate using Die Filling Simulation and Experimental Verification

  • 진철규 (부산대학교 대학원 정밀가공시스템공학과) ;
  • 장창현 (부산대학교 대학원 정밀가공시스템공학과) ;
  • 강충길 (부산대학교 기계공학부)
  • Jin, Chul-Kyu (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University) ;
  • Jang, Chang-Hyun (Department of Mechanical and Precision Engineering, Graduate School, Pusan National University) ;
  • Kang, Chung-Gil (Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University)
  • 투고 : 2011.08.24
  • 심사 : 2011.12.07
  • 발행 : 2012.04.30
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초록

In this paper, we present the results of our studies on optimal die design towards development of a vacuum die casting process to fabricate fuel cell bipolar plate with micro-channel array. Cavity and overflow shape is designed by computational filling analysis of MAGMA soft. Optimal die design consists of seven overflows at the end of cavity and three overflows at each side wall of cavity. The molten metal that passed the gate and reached the side wall flowed into the side overflow, no turbulent flow occurred, and the filling behavior and velocity distribution were uniform. In addition, partially solidified molten metal passing through the channel was perfectly eliminated by overflow without back-flow. When vacuum pressure, injection speed of low and high region was 300 mbar, 0.3 m/s and 2.5 m/s respectively with Silafont 36 die casting alloy, sound sample without casting defects was obtained. The experimental results are nearly consistent with simulation results.

키워드

참고문헌

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피인용 문헌

  1. Establishment of Design Criteria for Slot Shape Considering Castability of Aluminum Diecasting Process for Large Industrial Motor Rotor vol.36, pp.1, 2016, https://doi.org/10.7777/jkfs.2016.36.1.10