Method for manufacturing laminated iron core and apparatus for manufacturing laminated iron core

A method for manufacturing a laminated iron core, comprising:

• setting a blanking position on a sheet of workpiece material for a plurality of iron core pieces, and each of the plurality of iron core pieces including a yoke piece part having a linear shape and magnetic pole piece parts extending from the yoke piece part, such that a pair of iron core pieces, among the plurality of iron core pieces, are located opposed to each other and respective ones of the magnetic pole piece parts of a first iron core piece, from the pair of iron core pieces, are arranged between respective adjacent ones of magnetic pole piece parts of a second iron core piece, from the pair of iron core pieces;
• simultaneously blanking a front end side of the magnetic pole piece parts and a back surface side of the yoke piece part of the first iron core piece such that the first iron core piece is partially blanked from the sheet of workpiece material before simultaneously blanking a front end side of the magnetic pole piece parts and a back surface side of the yoke piece part of the second iron core piece such that the second iron core piece is partially blanked from the sheet of workpiece material;
• and then
• blanking the plurality of iron core pieces, which includes the first iron core piece and the second iron core piece, such that the plurality of iron core pieces is completely separated from the sheet of workpiece material;
• after blanking, laminating two or more of the plurality of iron core pieces together to form the laminated iron core.