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Investigation of Bipolar Plate Forming with Various Die Configurations by Magnetic Pulse Method

National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China
Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
Author to whom correspondence should be addressed.
Metals 2019, 9(4), 453;
Received: 22 March 2019 / Revised: 12 April 2019 / Accepted: 15 April 2019 / Published: 17 April 2019
(This article belongs to the Special Issue Forming and Heat Treatment of Modern Metallic Materials)
PDF [4837 KB, uploaded 24 April 2019]


Bipolar plates are a major part of fuel cells, which are a clean and recyclable energy source. This study was carried out with two dies for a bipolar plate forming investigation with the magnetic pulse method: a bipolar plate die and a 10-channel die. With the bipolar plate die, the forming of bipolar plates with a Cu110 sheet and a Grade 2 Ti sheet indicated that the bipolar plate die needed optimization for a full replication. The obtained maximum average depth percentage was 86% for a Cu110 sheet, while it was 54% for a Grade 2 Ti sheet in this study. A further increase of the depth percentage is possible but requires a much higher capacitor bank energy. The increase of the capacitor bank energy would result in severe tearing, while the depth percentage increase was little. The primary current and flyer velocity were measured at various capacitor bank energies. With the 10-channel die, the die parameters’ effect on metal sheet forming was investigated with a Cu110 sheet and an SS201 sheet. The draft angle had a significant effect on the replication of the die surface. The full replication was achieved for channels with proper parameters with both a Cu110 sheet and an SS201 sheet. Therefore, the bipolar plate die could be optimized based on the 10-channel die results. View Full-Text
Keywords: bipolar plate; formability; magnetic pulse; draft angle bipolar plate; formability; magnetic pulse; draft angle

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Wang, H.; Wang, Y. Investigation of Bipolar Plate Forming with Various Die Configurations by Magnetic Pulse Method. Metals 2019, 9, 453.

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