Influence of contact friction on equal-channel angular extrusion of materials - Part 1: extrusion of uncoated specimens

摘要

Influence of contact friction on the shape of specimens made of aluminum alloy and strain distribution in the material has been studied under equal-channel angular extrusion. The lubricating material proved to decrease efficiently the total extruding force. However, the behavior of material plastic flow remains heterogeneous since it is caused by the design features of extrusion tools used in the present extrusion technique.