An optimal forward extrusion device proposed for numerical and experimental analysis of materials tribological properties corresponding to bulk forming processes

► New friction test based on an optimal forward extrusion die design. ► This test permits to investigate the tribology of materials undergoing large plastic deformations. ► A novel methodology is proposed to identify the friction laws using an inverse analysis method. ► It is based on the optimal prediction of the experimental load-stroke curve using FEMs. ► Rheological and tribological properties of an AA5083 during a dry extrusion are presented.