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:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
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 flat land 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 system may, 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 after it has been formed by the first press station.