A Study of Plastic Deformation Behavior of AA1050 Aluminum Alloy duringPure Shear Extrusion with Back Pressure

In the present study, the effect of back pressure on the filling fraction of dies during pure shear extrusion, a novel severe plastic deformation process, is investigated by finite element analysis. The applied load predicted by simulation during the pure shear extrusion process is verified and a good agreement between the predicted results at a Coulomb friction factor of 0.12 and experimentsis found. Next, various amounts of back pressure are applied to a plunger at the exit channel of the dies, and their influence on the filling fraction of the die are studied.

Keywords:

Pure shear extrusion , Finite element method , Back pressure , Aluminum