| 摘要 |
PURPOSE:To provide an easy means of fixing a rotary shaft and a rotor and make the diameter of the shaft smaller and the weight of the shaft lighter by a method wherein the junction part of the rotor and the shaft is irradiated by a laser beam. CONSTITUTION:A rotary shaft 16 is inserted into a fixing hole 17a provided along the shaft axis of a rotor 17. Then the junction parts 19, which are positioned to one side and another side of the ends of the rotor 17 along the circumference of the fixing hole 17a, are irradiated by a laser beam. The rotor 17 and the rotary shaft 16 are fused immediately along the circumference and after the radiation is stopped, the junction parts 19 are cooled and the rotor 17 and the rotary shaft 16 are fixed. |
