An analytical solution of bimetal rod extrusion process through conical dies

Year 2015, Volume: 28 Issue: 2, 301 - 310, 22.06.2015

Heshmatollah Haghighat H. Askar

Abstract

In the present article,the radial and peripheral velocity components are determined for mono-metal rod extrusion through conical dies and then they are extended to extrusion process of initially bonded bimetal rods. By optimizing the total power with respect to the shape of the inlet shear boundary, the amount of extrusion force is obtained. The obtained solutions are tested with other ones found in the literature about this theme and with the results produced by the finite element method. It is found that all of the predicted results are in good agreement with the values computed by the finite element method and experimental results.

Keywords

rod extrusion, velocity field, upper bound method

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