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

A method for forming a blanked piece from a material, the blanked piece including a production area having a through hole in a central side and at least one caulking and connection area protruding inside the through hole of the production area, wherein a part of the caulking and connection area is fitted to a fitting part formed in an edge part of the through hole of the product area to temporarily connect the caulking and connection area to the product area, the method comprising:

• forming a blanking hole in the material, the blanking hole having a same outline as a configuration that combines an outline of a part of an inner periphery of the through hole from which an opening area of the fitting part is excluded with an outline of a part of the caulking and connection area protruding inside the through hole;
• placing a guide member in the blanking hole, the guide member having an abutting part which comes into contact with an end side of a protrusion of the material formed along the outline of the blanking hole;
• cutting and separating the material along an outline of the fitting part to blank or stamp out downward the caulking and connection area;
• pushing back the caulking and connection area in between the fitting part and the abutting part, and temporarily connecting the caulking and connection area to the material;
• and
• blanking or stamping an outer configuration of the product area from the material to which the caulking and connection area is temporarily connected.