Modeling and Production of High Strength Al Strips by Equal Channel Multi Angular Pressing Method

Equal channel multi angular pressing (ECMAP) process is an efficient method to enhance the productivity of ultra-fine grained (UFG) materials by increasing process continuity and as a result decreasing the process required time. Comparing repetitive ECAP method, in the same period, the number of passes can be done by ECMAP. In this article, ECMAP of AL strips in two typical annealed and as received conditions were studied, and route C was selected as multi pressing route. Values of equivalent plastic strain (PEEQ) and micro-hardness in the cross section of ECMAPed strips were obtained both by FE simulations and practical tests, correspondingly. These values were also used for obtainingtheinhomogeneity of produced ECMAPed strips. Furthermore, mechanical property for both as received and annealed strips before and after pressing was studied experimentally. Also, load-displacement curve during the ECMAP process was obtained by finite element method (FEM). For FEM results validation, PEEQwas calculated by the analytical method, too. Results show that there is good conformity between FE, analytical, and practical results.