| 摘要 |
The inventive method involves deforming the extremities of a plate, which has a rectangular edge and is disposed between the working surface of strikers, by ultrasonic forging with the aid of the strikers, simultaneously moving the plate in a transverse direction with respect to the longitudinal axes of the strikers and turning the strikers. Each striker is provided with a groove with a curvilinear generatrix which is made on the surface thereof with a variable radius R. The width of the plate is reduced by a value Delta=R(1-pi/4), wherein R is the variable radius value at a point where the ultrasonic forging of the plate is carried out. The circumferential speed Vcirc.S of the striker rotation is chosen, during the plate displacement, as to correspond to the above-mentioned relationship. In the device, the circumferential speed of the striker rotation is synchronized with the plate displacement velocity. The groove of the striker is designed with the variable radius R. |
