Investigation of the Effect of Different Working Mediums on Turning Al7075-T6 Alloy

Abstract

The surface quality of the manufactured parts is an important factor affecting the functional properties such as corrosion resistance, the fatigue strength of the part. For this reason, this study aims to develop surface roughness of Al 7075-T6 alloy material which is generally used in the aviation and manufacturing industry. In this study, the machinability of Al 7075-T6 alloy
with different high speed turning parameters was investigated. Two different mediums (Dry and boron oil), three different cutting speeds (400, 800 and 1600 m/min) and three different feed rates (0.1, 0.2 and 0.4 mm/rev) were determined as parameters in the experiments. The optimum parameters for the determination of surface roughness values of Al 7075-T6 alloy were determined. The most important parameters affecting the surface roughness of the Al 7075-T6 alloy have been found out to be the feed rate. It appears that the medium and cutting speed examined have not had a significant effect on the surface roughness. When the test results are taken into consideration, the best surface roughness value is reached with parameters: medium: boron oil, cutting speed 400 m/min and feed rate: 0.1 mm/rev.