| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for joining a plastic flow combination which offers high combining strength and high precision, does not generate contaminations and is of low cost. SOLUTION: The invention relates to the method for joining a joining member and a joined member to be used for a rotating device into one-piece body, in which the joining member 2 is a rotating disc and the joined member 1 is a rotation axis. The joining method comprises a first step in which the joining member 2 is fitted into the joined member 1 and both members are joined preliminarily plastically by a preliminary joining punch, and a second step in which compressive force in the axial direction of the joined member 1 is generated near the fitted part of the joining member 2 after the preliminary plastic joining in the first step so that part of the material of the joining member 2 is made to plastically flow to fill up the clearance between the joining member 2 and the joined member 1 for plastically joining with the joined member. Thus the joining member 2 and the joined member 1 are united into one-piece body. COPYRIGHT: (C)2004,JPO |
