METHOD FOR MANUFACTURING PROCESSING BODY FOR LAMINATED CORE AND METHOD FOR MANUFACTURING LAMINATED CORE

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a processing body for a split laminated core in which influence of distortion accompanying formation of a cutting line for separation into a plurality of parts and the like is sufficiently small.SOLUTION: This disclosure relates to a method for manufacturing a processing body for a split laminated core. This method includes the steps of: (A) supplying the processed plate drawn from a wound body to a progressive die; and (B) acquiring a processing body composed of a plurality of parts arranged in a circumferential direction and including an annular part by punching in the progressive die. The step (B) includes forming a cutting line crossing a region serving as the annular part by displacing the entire portion serving as a part of the processing body in a thickness direction of a processed plate in a state in which the portions positioned on both sides of the part are respectively fixed.SELECTED DRAWING: Figure 4