Experimental Estimation of Wear Behavior of Al6082 and Al7075 Alloys During Cold Forging

Abstract

One of the most important metal forming process includes forging. Estimating wear, coefficient of friction and frictional force on Al6082 and Al7075 alloys has become widely considerable and research factor in industries. In this paper, a mathematical model is proposed to estimate the required forging force to be applied on a pin-on-disc machine during the actual forging process. Cold forging process experiments are conducted on a pin-on-disc machine with different loads from 40N to 70N. Experiments are carried out for a time period of 5 mins at 150 rpm at temperatures such as 50℃, 100℃ and 150℃. Outcomes exhibit that the friction force fluctuates constantly with time. The experimental investigation revealed that the wear changed with temperature, and it was distinctive for various alloys. The chemical composition of aluminum can also affect the performance of Al alloys. Furthermore, it also proven that there is a decrease in the wear of Al alloys with a decrease in the real area of contact due to the formation of wear debris as well as an increase in the content of silicon and zinc that is added to form the alloy.