Manufacturing method of laminated iron core
AssigneeMitsui High-Tec, Inc.
InventorsShigeru Nagasugi, Takashi Fukumoto, Jin Oda
Life of this patent
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Abstract
A manufacturing method of a laminated iron core by laminating a plurality of blanked members to form a laminate, the laminate including a pair of first and second end surfaces and the plurality of blanked members being interlocked by a caulk in a lamination direction of the laminate, includes: forming the laminate such that a protrusion of the caulk protrudes downward from the first end surface being in a downward state; placing the laminate on support such that the protrusion is not in contact with a support surface of the support; and processing the laminate in a state where the laminate is placed on the support.
Claims7
A manufacturing method of a laminated iron core by laminating a plurality of blanked members to form a laminate, the laminate including a first end surface, which has a through hole, and a second end surface,
- one of the plurality of blanked members providing the first end surface, and the plurality of blanked members being interlocked by a caulk in a lamination direction of the laminate, the manufacturing method comprising:
- forming the laminate such that a protrusion of the caulk of another of the plurality of blanked members that is adjacent the one of the plurality of blanked members extends by at least a length of the through hole to define an extended protrusion, and the extended protrusion protrudes downward from the through hole of the first end surface;
- placing the laminate on a support such that the extended protrusion is not in contact with a support surface of the support;
- and
- processing the laminate in a state where the laminate is placed on the support.
Dependencies are inferred from the claim text.