| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate iron core and a manufacturing method therefor, having satisfactory magnetic efficiency with a small loss and secured lamination strength of each iron core piece.SOLUTION: Each of a first and a second caulking part 20, 16 constitutes a V-shaped caulking of a rectangular shape in a plan view and includes a bottom part and slant parts joined thereto and facing each other. The caulking depth of the first caulking part 20 is formed shallower than the caulking depth of the second caulking part 16. An engagement area (A) between a recess and a salient of the first caulking part 20 of an iron core piece 12 disposed mutually adjacent in the lamination direction is made smaller than an engagement area (B) between a recess 16a and a salient 16b of the second caulking 16 disposed mutually adjacent in the lamination direction. |
