Quasi-3D Strain Analysis in Equal Channel Angular Pressing

摘要

Although deformation features of ECAP have been widely studied and investigated through numerical approaches,experimental observations are very scarce in the literature.Therefore,in this paper,quasi-3D strains in multi-sectioned samples during one pass of ECAP are analyzed,for different friction conditions and material properties.From this study,it can be concluded that ECAP is a plane-strain process and friction and material properties affect the strain distribution,strain homogeneity and also the work-piece geometry.Furthermore,ECAP can be interpreted as a combination of shear and stretch.