Abstract
Equal Channel Angular Pressing (ECAP) is currently being widely investigated because of its potential to produce ultrafine grained microstructures in metals and alloys. A sound knowledge of the plastic deformation and the strain distribution is necessary for understanding the relationships between strain inhomogeneity and geometry of die. Considerable research has been reported on finite element analysis of this process, assuming 2D plane strain condition. The 2D models are not suitable due to the component geometry, especially for work-piece with cylindrical cross section. In the present work 3D simulation of ECAP process was carried out for different inner corner radii for strain hardening aluminium alloy (AA 6101). Strain inhomogeneity is presented and discussed for all cases. Pattern of strain variation along certain radial lines in the body of work-piece is presented.
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