| 摘要 |
In the present invention, processing is made easy even for cylindrical parts that have unbalanced sheet thickness and volume. In a spinning processing method for processing a rotor shaft (4), a material joining process, material separation and deformation process, and a cylinder forming process are provided. The material joining process aligns the sheet surfaces and joins at least two pieces of metal sheet material (40a, 40b, 40c) (FIG. 3). The material separation and deformation process rotates the metal sheet material (40a, 40b, 40c) by a rotating shaft (CL) that is perpendicular to the sheet material surface, and separation and deformation are carried out by applying force at the joining position on the periphery of the at least two pieces of metal sheet material (40a, 40b, 40c) that have been joined (FIG. 4). The cylinder forming process applies force to at least one piece of the metal sheet material (40a, 40b) and forms a cylinder along the rotating shaft (CL) (FIG. 5). |
