Method of producing workpiece having irregular cross section by stamping thin plate into thick plate
A method of producing workpiece having irregular cross section by stamping thin plate into thick plate is provided. In the method, a thin plate having a uniform thickness corresponding to that of a thinner area to be formed on the workpiece is used. Multiple stamping heads having different and gradually increased bevel angles are used one by one to stamp one or two sides of the thin plate at a predetermined scrap area, so that a part of the scrap area is gradually compressed and pushed toward a specific area that is to have larger thickness on said workpiece. When the specific area bumps to a predetermined height, a stamping mold is used to downward stamp the bumped area into a predetermined shape. Thereafter, the remained scrap area on the thin plate is removed to obtain the desired workpiece. The method enables largely reduced scrap and manufacturing time and cost in forming a workpiece having irregular cross section.
Rulong Precision Industry Co., Ltd.
H B B B B B
H01R B21J B21K B21C B21J B21C
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Wen-Han
Liu