METHOD FOR FORMING BLANKED PIECE AND MANUFACTURING METHOD OF LAMINATED BODY AND LAMINATED IRON CORE USING BLANKED PIECE FORMED BY METHOD FOR FORMING BLANKED PIECE

摘要

A method for forming a blanked piece from a material, where theblanked piece includes a production area having a through hole and at leastone caulking and connection area protruding inside the through hole. Themethod includes forming a blanking hole in the material in a prescribedoutline, placing a guide member in the through hole, where the guidemember has an abutting part contacting a protrusion of the material formedalong the outline of the blanking hole. The method further includes cuttingand separating the material to blank or stamp out downward the caulkingand connection area, pushing back the caulking and connection area, andtemporarily connecting the caulking and connection area to the material;and blanking or stamping an outer configuration of the product area fromthe material to which the caulking and connection area is temporarilyconnected.