Zhao Guoqun

Simulation and analysis of rotary forging a ring workpiece using finite element method

The methods of dealing with some key problems in analyzing a rotary forging process with a finite element method are given. The presented mechanical model of the finite element analysis is in accordance with the actual conditions of the rotary forging process. A three-dimensional rigid-plastic finite element analysis code is developed in FORTRAN language and used to analyze the rotary forging process of a ring workpiece. Velocity fields and stress-strain fields of both contact and non-contact zones of the ring workpiece in the rotary forging are obtained. The deformation mechanism and metal flow laws of the contact zone surface of the ring workpiece in the rotary forging process are revealed. The pressure distributions of the contact surface along the radial and tangential directions and effects of rotary forging parameters on deformation characteristics are given.

A three-dimensional rigid–plastic FEM analysis of rotary forging deformation of a ring workpiece

Abstract The deformation of a ring workpiece by the rotary forging process is analyzed using a three-dimensional rigid–plastic finite element method. Velocity fields and stress–strain fields of the ring workpiece in the rotary forging deformation are obtained. The new metal flow demarcation model obtained in this paper is different from that ever provided before. The deformation mechanism of the rotary forging of the ring workpiece is revealed thoroughly.