A simulation of hollow and solid products in multi-pass hot radial forging using 3D-FEM method

Abstract

Radial forging is an incremental forming process, where the total deformation is achieved by successive individual forming steps. Most researchers investigating radial forging processes have used axisymmetric models. In this research, multi-pass hot radial forging of short hollow and solid products are investigated using a 3-D finite element simulation. The workpiece is modeled as an elastic-viscoplastic material. Three-pass radial forging of solid cylinder and tube products are simulated. Temperature, stress, strain, and metal flow distributions are obtained in each pass through a 3D thermo-mechanical simulation. Finally, the results of 3D FEM models are compared with results obtained by axisymmetric FEM models from previous work and with available experimental data. © Springer/ESAFORM 2008.