The process of cross-wedge rolling on forming complicated stepped-shaft forgings

This paper introduces concisely the developments and applications of cross-wedge rolling in China, and points out this process has widely applying prospect not only on producing stepped-shaft forgings but also on supplying the preform for precision forgings. In order to widening the forming range of cross-wedge rolling, the authors have researched the deforming process and forming technology of eccentric stepped-shaft forgings and large deformation ratio forgings. The Authors also have put forward the method for the calculation and design of cross-wedge rolling die, as well as the selection of process parameters. Taking typical practice forgings for example, the paper explains the applications of achievements in research. The paper puts forward the foreground of cross-wedge rolling development.