System and method for manufacturing channels in a bipolar plate

A method for manufacturing a bipolar plate includes the steps of: (1) providing sheet metal within a stamping press system; (2) stamping the sheet metal with a first die to define an interim flat land, a first interim sidewall, a second interim sidewall, and a first interim channel depth for a plura...

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Bibliographische Detailangaben
Hauptverfasser: XU, SIGUANG, LOVRIA, JOSEPH N
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A method for manufacturing a bipolar plate includes the steps of: (1) providing sheet metal within a stamping press system; (2) stamping the sheet metal with a first die to define an interim flat land, a first interim sidewall, a second interim sidewall, and a first interim channel depth for a plurality of flow channels; and (3) stamping the sheet metal with a second die to widen the interim flatland in each flow channel in the plurality of flow channels forming a final flat land and to reduce each interim radii of each flow channel in the plurality of flow channels. The stamping press systemmay, but not necessarily, include a first press station having a first die set and a second press station having a second die set wherein the second press station is applied to the sheet metal afterit has been formed by the first press station. 种制造双极板的方法包括以下步骤:(1)在冲压机系统内提供金属片;(2)用第模具冲压金属片以限定临时平坦区域、第临时侧壁、第二临时侧壁,和用于多个流动通道的第临时通道深度;和(3)用第二模具冲压金属片以加宽多个流动通道的每个流动通道中的临时平坦区域,以形成最终平坦区域,并且减小多个流动通道中的每个流动通道的每个临时半径。该冲压机系统还可以但并不是必须包括具有第