Three dimensional simulation of ECAP to produce high strength materials

Severe plastic deformation method using equal channel angular pressing (ECAP) has been used as a reliable method to achieve ultrafine grains material. In this research, the plastic deformation behavior of 7075 alloy of aluminum has been simulated by finite element method in three-dimensional method. Different factors such as pressing speed, die channel angle (Φ), die corner angle (Ψ), the frictional status were considered both theoretically and experimentally.Comparing simulative and experimental results, there is a proper agreement between three-dimensional simulation and real condition of ECAP.Overall, the mechanical behavior of material can be predicted by three-dimensional simulation before real ECAP process and it can be widely used to design the process to material to predict the process results.