| 摘要 |
Disclosed is a method of manufacturing a rotor shaft including a rotor 12 and a shaft 11 having a groove 11b formed on a periphery to open radially outwardly, the rotor 12 being fixed to the shaft 11 through a caulking plate 13 disposed on the periphery of the shaft 11 and adjacent the rotor 12 in an axial direction thereof. This method comprises the step of caulking the caulking plate 13 to fix the rotor 12 to the shaft 11 by applying a load to an end portion of the caulking plate 13 from outside in a radial direction, opposite the groove 11b, when the caulking plate 13 is disposed in the predetermined place, causing a part of the caulking plate 13 to be press-fitted into the groove 11b. This caulking and fixing step includes pressing a punch 14 against the caulking plate 13 from outside in a radial direction of the shaft 11, thereby fixing the rotor 12 to the shaft 11. |
