Abstract
AbstractIn this study, rubber pad forming is employed for the cost-effective production of metallic bipolar plates. To this end, a punch with parallel serpentine flow field patterns and a rubber layer is used to form SS316 bipolar plates with a thickness of 0.1 mm. The influence of forming force and rubber hardness on the channel depth of the bipolar plates is investigated. Results show a direct relationship between the channel depth and the applied force. The maximum channel depth is decreased by increasing the hardness of the rubber. However, a remarkable reduction in the rubber hardness reduces the system’s performance in supplying the pressure required for forming microchannels and results in an unformed bipolar plate. Thus, to achieve a greater channel depth, the applied force and the rubber hardness should be increased accordingly.KeywordsPEMFCMetallic bipolar platesMetal formingRubber pad formingRubber hardness
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