Surface Roughness Optimization of AL 7075 Aluminum Alloy in Hole Turning Process

Abstract

  One of the main purposes of machining is to minimize the surface roughness of the workpiece. In this study, the hole turning operation was applied to AL7075 alloy. First, the parts were drilled on a CNC lathe with an HSS drill. Then the holes were turned. The effects of turning parameters on surface roughness were determined by Signal/Noise analysis. As a result of the study, it has been determined that the most important parameter for surface roughness is the cutting speed. It has also been found that the use of a small amount of cutting depth gives a better surface roughness.