Abstract
In this present paper, the combined-radial extrusion process at room temperature is considered. Computer-aided simulations by the rigid-plastic finite element program such as QForm 2D in two different schemes of the combined-radial extrusion process, viz, single-ended and double-ended have been used. The die schemes, die geometry parameters, axisymmetric billet dimensions and power mode parameters to investigate forming characteristics such as deformation patterns (gridlines distortion), distributions of effective strain and stress and comparisons of load–stroke curve in these processes by using various relationships have been applied. Based on the simulation results, it is concluded that the maximum forming load will occur in single-ended process and the best strain-stress distributions will be appear in double-ended process.
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