This paper expounds the conditions and features of plastic deformation of the rediairolling ring, anaiyses the instantaneous maximum of the screwdown and derives the calculatingformulas for the rolling time and the feeding speed.

By using some simplification assumptions,a theoretical analysis of the local rolling forming load for the discal parts is presented.

CAD system development of rotary forging deformation process;

Preliminary FEM analysis of four-column rotary forging machine frame;

Research of precision form mechanism by torsion vibro-rotary forging;

Through analysing the course of metal deformation and the geometric relation when rolling, and according to the stress and strain theory of metal plastic deformation and rolling condition, we compute the rolling force and power and compressive quantity and operating time, which have practical value for the production technique.

The final mechanical property of bearing ring depends on the deformation, In order to make bearing ring have good quality and obtain high prouction efficieny, this paper analyzes multiple rolling range in the machining,rang of the equipment, considers the equipment capacity and the deformation of ring blank, and then sets a mathematical model of process parameter in rolling.