| Equal channel angular pressing is a convenient forming procedure to extrude material without substantial change in its geometry and to make an ultrafine grained material. The properties of materials are strongly dependent on the plastic deformation behaviour during the pressing, which is controlled mainly by 1) die geometry, such as a channel angle and corner angles, 2) material properties, and 3) process variables, such as lubrication and deformation speed. In this study, the plastic deformation behaviour of materials during the equal channel angular pressing has been theoretically analysed by finite element method. The effect of the die geometry and the sample length on the plastic deformation behaviour during the pressing has been discussed. |
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