Characterisation of different lubricants concerning the friction coefficient in forging of AA2618

In this paper a number of aluminium forging lubricants were tested with respect to their lubricating effect and their applicability in the production of parts with long flow paths. The tests were conducted on a custom built testing machine that simulates the parameters of industrial production. The lubricants were assessed considering the change of the coefficient of friction during the test and the influence on tool and workpiece surface. From the presented analysis, the most appropriate lubricant for the investigated process was found.