ANALYSIS OF SURFACE ROUGHNESS ON MACHINING OF AL-5CU ALLOY IN CNC LATHE MACHINE

Abstract

In this study, an experimental approach is presented for the measurement of the surface roughness of the machined surface produced by simple turning operation in a computer numerically controlled (CNC) Lathe. The parameters used in the experiment were reduced to three cutting parameters, cutting speed, depth of cut, feed rate. Other parameters such as tool nose radius, workpiece length, workpiece diameter, and workpiece material was taken as constant. The effect of the process parameters namely, cutting speed, depth of cut, feed rate, upon the response like surface roughness of the finished surface was analyzed by using 3D profilometer, during this investigation. Experiments were carried out by keeping cutting speed, depth of cut, as constant and feed rate as variable.