抄録
It can be assumed that mechanism of conventional simple spinning consists of drawing process and ironing process from the previous experimental results. This report deals with an analysis of drawing process in detail. Drawing process is characterized by the fact that bending deformation may be caused at first along the part where the blank begins to conact with the roller, and drawing deformation may be followed on the radius of round-off of the roller. The analysis of these deformations are performed respectively. The calculated results are checked by the experimental results and the agreements are good. As the results, it is evident that bending deformation is important in spinning.
