MANUFACTURING METHOD OF ROTOR FOR ROTARY ELECTRIC MACHINE AND SHAFT MATERIAL FOR ROTARY ELECTRIC MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a rotor for a rotary electric machine that has an axial force to a rotor core by a calking part provided in a rotor shaft so as to stabilize calking quality to improve robustness.

SOLUTION: A rotor shaft composed of a rotor comprises: a fitting part 26 fitting a rotor core 12; a flange part located at one end of the fitting part 26 in an axial direction; and a calking part located at other end of the fitting part 26 in the axial direction. The calking part is formed being bent into an outer diameter side over whole circumference at the other end of the rotor shaft in the axial direction to hold in the rotor core 12 in the axial direction. When manufacturing the rotor, an annular notch 38 hollowing in an inner diameter side over whole outer peripheral surface at the other end of the fitting part 26 in the axial direction is provided with a shaft material 36 composed of the rotor shaft, an axial force using a calking jig 44 is given to the shaft material 36 with fitting the rotor core 12 to the fitting part 26 so as to form the calking part.

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