Abstract
In the present study, the effect of geometric parameters on the simple shear extrusion (SSE) process as one of the most recent severe plastic deformation methods is investigated. Three deferent curvatures for deformation channel based on linear, quadratic and sine equations are introduced. Simulation of the process is carried out by means of the commercial finite element code ABAQUS/Explicit. Effect of die profile as well as backpressure on the strain, strain rate and load of deformation is studied. Results show that the shape of die profile does not have any significant effect on the required backpressure and the load of the process. The most homogeneous distribution of strain is obtained by linear die profile. Among all die profiles, only the linear profile can provide a constant strain rate. It is shown that linear profile is also the best candidate for deformation channel in SSE process due to its feasibility and homogeneity in the distribution of stain and constant strain rate.
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