Optimizing the process parameters of machinability through the Taguchi Technique

CNC machine tool is widely used by manufacturing engineers and production personnel to quickly and effectively set up manufacturing processes for new products. This study discusses an investigation into the use of Taguchi Parameter Design methodology for study of CNC turning operation for surface roughness as a response variable. The Taguchi parameter design method is an efficient experimental method in which a response variable can be study, using fewer experimental runs than a factorial design method. The control parameters for this operation included: spindle speed, feed rate, depth of cut, and tool nose radius. A total of 27 experimental runs were conducted using an orthogonal array, and the ideal combination of controllable factor levels was determined for the surface roughness and signal-to-noise ratio. A confirmation run was used to verify the results, which indicated that this method was both efficient and effective in determining the best turning parameters for the surface roughness.