LAMINATED IRON CORE AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To obtain a laminated iron core having superior magnetic characteristic and capable of enhancing reliability of a conductor winding process, by enabling it to prevent the circumferential relative movement between an iron core constituting piece and a die in the middle of manufacture. SOLUTION: This laminated iron core is manufactured by laminating a plurality of iron core constituting pieces 81 inside a cylindrical die 82 and has slots for winding conductors in formed stretching in the axial direction. The iron core constituting pieces 81 have wavy parts 83 for preventing circumferential relative rotation movement to the die 82 on their peripheral end surfaces.