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http://dx.doi.org/10.5228/KSTP.2012.21.1.5

Forming of Metallic Bipolar Plates by Dynamic Loading  

Koo, J.Y. (부산대학교 대학원 정밀가공시스템)
Kang, C.G. (부산대학교 기계공학부, 정밀정형 및 금형가공 연구센터)
Publication Information
Transactions of Materials Processing / v.21, no.1, 2012 , pp. 5-12 More about this Journal
Abstract
The weight of the bipolar plate is one of the crucial aspects of improving power density in PEMFC stacks. Aluminum alloys have good mechanical properties such as density, electrical resistivity, and thermal conductivity. Furthermore, using aluminum in a bipolar plate instead of graphite reduces the bipolar plate cost and makes machining easier. Therefore in this study, an aluminum alloy was selected as the appropriate material for a bipolar plate. Results from feasibility experiments with the aim of developing fuel cells consisting of Al bipolar plates with multiple channels are presented. Dynamic loading was applied and the formability of micro channels was estimated as a function of punch pressure and die radius. Sheets of Al5052 with a thickness of 0.3mm were used. For a die radius of 0.1mm the formability was optimized with a sine wave dynamic load of 90kN at maximum pressure and 5 cycles of a sine wave punch travel. The experimental results demonstrate the feasibility of the proposed manufacturing technique for producing bipolar plates.
Keywords
Bipolar Plate; Formability; Stamping; Dynamic Loading; Al5052 Plate;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 J. C. Hung, T. C. Yang, K. C. Li, 2010, Studies on the Fabrication of Metallic Bipolar Plates-Using Micro Electrical Discharge Machining Milling, J. Power Sources, Vol. 196, No. 4, pp. 2070-2074.   DOI
2 L. Shuo-Jen, L. Chi-Yuan, Y. Kung-Ting, K. Feng-Hui, L. Ping-Hung, 2008, Simulation and Fabrication of Micro-scaled Flow Channels for Metallic Bipolar Plates by the Electrochemical Micro-machining Process, J. Power Sources, Vol. 185, No. 2, pp. 1115-1121.   DOI   ScienceOn
3 K. Muammer, M. Sasawat, 2007, Feasibility Investigations on a Novel Micro-manufacturing Process for Fabrication of Fuel Cell Bipolar Plates: Internal Pressure-assisted Embossing of Micro-Channels with In-die Mechanical Bonding, J. Power Sources, Vol. 172, No. 2, pp. 725-733.   DOI   ScienceOn
4 H. S. Jang, D. S. Park, 2010, Microfabrication of Microchannels for Fuel Cell Plates, Sensors, Vol. 10, No. 1, pp. 167-175.   DOI
5 C. K. Jin, C. G. Kang, 2011, Fabrication Process of Aluminum Bipolar Plate for Fuel Cell using Vacuum Die Casting, J. Kor. Foundrymen's Soc., Vol. 31, No. 2, pp. 71-78.   DOI
6 S. U. Lee, D .T. Nguyen, N. K. Kim, S. H. Yang, Y. S. Kim, 2011, Application of Incremental Sheet Metal Forming for Automotive Body-In-White Manufacturing, Trans. Mater. Process., Vol. 20, No. 4, pp. 279-283.   DOI
7 S. Mahabunphachai, O. N. Cora, M. Koc, 2010, Effect of Manufacturing Processes on Formability and Surface Topography of Proton Exchange Membrane Fuel Cell Metallic Bipolar Plates, J. Power Sources, Vol. 195, No. 16, pp. 5269-5277.   DOI   ScienceOn
8 H. J. Kwon, C. G. Kang, 2011, Formability of Aluminium Embossing Sheets with Controlled Stamping Machine for PEM Fuel Cell, Mater. Res. Innovations, Vol. 15, pp. s126-s130.   DOI
9 W. J. Song, S. C. Heo, T. W. Ku, B. S. Kang, J. Kim, 2011, Evaluation of Strain, Strain Rate and Temperature Dependent Flow Stress Model for Magnesium Alloy Sheets, Trans. Mater. Process. Vol. 20, No. 3, pp. 229-235.   DOI
10 H. Tawfika, Y. Hung, D. Mahajan, 2007, Metal Bipolar Plates for PEM Fuel Cell, J. Power Sources, Vol. 163, No. 2, pp. 755-767.   DOI   ScienceOn
11 P. Costamagna, S. Srinivasan, 2001, Technical Cost Analysis for PEM Fuel Cells, J. Power Sources, Vol. 109, No. 1, pp. 71-75.   DOI
12 T. Matsuura, M. Kato, M. Hori, 2006, Study on Metallic Bipolar Plate for Proton Exchange Membrane Fuel Cell, J. Power Sources, Vol. 161, No. 1, pp. 74-78.   DOI   ScienceOn
13 G. O. Mepsted, J. M. Moore, 2003, Handbook of Fuel Cell, John Wiley & Sons Ltd, England, Vol. 3, pp. 289-290.