Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Vacuum Die Casting Mold Design of Fuel Cell Bipolar Plate using Die Filling Simulation and Experimental Verification

금형 충전 해석을 이용한 연료전지 분리판 진공 다이캐스팅 금형 설계 방안 및 실험 검증

  • 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)
  • 진철규 (부산대학교 대학원 정밀가공시스템공학과) ;
  • 장창현 (부산대학교 대학원 정밀가공시스템공학과) ;
  • 강충길 (부산대학교 기계공학부)
  • Received : 2011.08.24
  • Accepted : 2011.12.07
  • Published : 2012.04.30
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Abstract

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.

Keywords

References

  1. A. Hermann, T. Chaudhuri, P. Spagnol., Int. J. Hydrogen Energy, "Bipolar Plates for PEM fuel cells: A review", 30 (2005) 1297-1302 https://doi.org/10.1016/j.ijhydene.2005.04.016
  2. E. Middelman, W. Kout, B. Vogelaar, J. Lenssen, E. de Waal., J. Power Sources, "Bipolar plates for PEM fuel cells", 118 (2003) 44-46 https://doi.org/10.1016/S0378-7753(03)00070-3
  3. G. O. Mepsted, J. M. Moore., Handbook of fuel cell, "Performance and durability of bipolar plate materials", 3 (2004) 286-293
  4. J. Barranco, F. Barreras, A. Lozano, A.M. Lopez and etc., "Cr and Zr/Cr nitride CAE-PVD coated aluminum bipolar plates for polymer electrolyte membrane fuel cells", 35 (2010) 11489-11498 https://doi.org/10.1016/j.ijhydene.2010.05.050
  5. H. Tawfik, Y. Hung, D. Mahajan, "Metal bipolar plates for PEM fuel cell-A review", 163 (2007) 775-767
  6. G. M. Yoon, D. H. Kang, Y. J. Ko, J. D. Lim., KSAE 2009 Annual Conference, "Application of High Level Vacuum Die-Casting for the Automotive Parts", 1540-1546
  7. X. P Niu, B. H. Hu, I. Pinwill, H. Li., J. Mater. Proc. Technol, "Vacuum assisted high pressure die casting of aluminium alloys", 105 (2000) 119-127 https://doi.org/10.1016/S0924-0136(00)00545-8
  8. Y. C. Kim, C. S. Kang, J. I. Cho, C. Y. Jeong, S. W. Choi, S. K. Hong., J. Mater. Sci. Technol, "Die Casting Mold Design of the Thin-walled Aluminum Case by Computational Solidification Simulation" 24(3) (2008) 383-388
  9. C. K. Jin, C. G. Kang., J. Kor. Foundry's Soc., "Fabrication Process of Aluminum Bipolar Plate for Fuel Cell using Vacuum Die Casting", 31 (2011) 71-78 https://doi.org/10.7777/jkfs.2011.31.2.071
  10. J. Park, X. Li., J. Power Sources, "An experimental and numerical investigation on the cross flow through gas diffusion layer in a PEM fuel cell with a serpentine flow channel", 163 (2007) 853-863 https://doi.org/10.1016/j.jpowsour.2006.09.083
  11. R. Boddu, U.K. Marupakula, B. Summers, P. Majumdar., J. Power Source, "Development of bipolar plates with different flow channel configurations for fuel cells". (2009) 1083-1092
  12. K.W. Chon, H.W. Lee, C.K. Park, B.S. Oh., KHNES, "Performance Analysis of PEMFC with Different Channel Depth", (2004) 137-142
  13. Y. G. Yoon, W. Y. Lee, G. G. Park, T. H. Yang, C. S. Kim, "Effects of channel and rib widths of flow field plates on the performance of a PEMFC", 30 (2005) 1363-1366 https://doi.org/10.1016/j.ijhydene.2005.04.008
  14. D. H. Lee, C. G. Kang, S. K. Lee., J. Kor. Foundry's Soc., "Prediction Defect of Automotive Components by Filling and Solidification Analysis, 20(3) (2000) 159-166
  15. D. H. Lee, P. K. Seo, C. G. Kang., J. Mater. Proc. Technol, "Die design by filling analysis of semi-solid injection forging process and their experimental investigation", 147 (2004) 45-50 https://doi.org/10.1016/j.jmatprotec.2003.10.023

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