| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated iron core excellent in caulking junction strength and profile even if iron core pieces each having a thickness of lower than 0.2 mm are used, and to provide a method of manufacturing the laminated iron core. SOLUTION: The iron core is caulked and laminated so that caulking protrusions 16 each formed on the iron core pieces 18, 19 and having a protrusion length of two times the plate thickness of an iron core 14 are caulked and laminated, so as to enter into through-engaging portions 15 formed on the plurality of iron core pieces 14 sequentially laminated up to the same thickness as the protrusion length and the thickness where the tip of the caulking protrusion 16 reaches, and the forming positions of the caulking protrusions 16 and the through-engaging holes 15 are provided differently per predetermined laminate thickness. COPYRIGHT: (C)2008,JPO&INPIT
|
