A New Cone-Friction Test for Evaluating Friction Phenomena in Extrusion Processes
Friction is one of the most influential parameters in extrusion processes. The flow distribution is controlled using the effect of friction lengths on the extrusion dies. A comparison between multi-hole die aluminum extrusion experiments and simulations  necessitated studies on numerical and physical modeling of friction during aluminum extrusion. In order to measure the friction under conditions similar to extrusion processes a new experimental setup is proposed.
A. Erman Tekkaya and Nooman Ben Khalifa
C. Karadogan et al., "A New Cone-Friction Test for Evaluating Friction Phenomena in Extrusion Processes", Key Engineering Materials, Vol. 424, pp. 161-166, 2010