Aisin Corporation

Takaaki Kawashima

Yutaka Hara

Mariko Saito

Takashi Iwama

Junya Abe

The rotor manufacturing method includes the step of fixing a shaft to a rotor core by hydroforming. The shaft has a cylindrical shape in which an inside diameter of a first portion of the shaft to be placed on an inner peripheral surface of a shaft insertion hole is larger than an inside diameter of a second portion of the shaft located on one side in a rotation axis direction relative to the first portion.

Rotor manufacturing method

This rotor manufacturing method includes the steps of: pressing a rotor core in a central axis direction by using a core pressing member; and fixing a shaft to the rotor core by performing, with the rotor core pressed, hydroforming that involves pressure-welding the shaft to an inner peripheral surface of a shaft insertion hole.

Growing community of inventors

Kariya, Japan

Takaaki Kawashima