EXPERIMENTAL ANALYSIS ON THE EFFECT OF PROCESS PARAMETERS DURING CNC TURNING ON NYLON - 6/6 USING TUNGSTEN CARBIDE TOOL

Quality and productivity of the machined parts are the main challenges of metal cutting industry during turning process. Therefore we should optimize and analyse the cutting parameters in such a way that the required surface quality can be controlled. Turn ing is the most widely material removal process in industrial area. It is important to study the effect of the cutting parameters on MRR and surface roughness to improve machinability. The purpose of this paper is to study the effect of speed, feed and de pth of cut on surface roughness (Ra) and MRR in turning nylon - 6/6 using tungsten carbide tool. Experiments were conducted on a CNC lathe and the influence of cutting parameters was studied using analysis of variance (ANOVA). Based on the main effects plots obtained optimum level for surface roughness was chosen from the three levels of cutting parameters considered. From the experiment it is found that feed, depth of cut, and the interaction of feed and depth of cut significantly influenced the variance. We have calculated the main effects and percentage contribution of various process parameters affecting surface roughness also determined.