OPTIMIZATION OF THE MACHINING PARAMETERS FOR THE TURNING OF 15-5 PH STAINLESS STEELS USING THE TAGUCHI METHOD

WOS: 000396592900021The present study investigated the effects of the control factors of cutting speed, feed rate and depth of cut on the response variables of cutting force (F-c) and surface roughness (R-a) in the dry turning of 15-5 PH martensitic stainless steel. Using PVD TiAlN-AlCrO- and CVD TiCN-Al2O3-TiN-coated carbide-cutting-tool inserts, a number of turning experiments were conducted via the L-18 (2(1)x3(3)) Taguchi mixed orthogonal array. The machining parameters were optimized using signal-to-noise ratio (S/N) and analysis of variance (ANOVA). Additionally, empirical models were created for predicting the F-c and R-a using multiple-regression analysis. The results indicated that depth of cut was the most significant cutting parameter affecting F-c, while the feed rate contributed the most to R-a. The developed quadratic regression model, showing a high determination coefficient of 0.981 for F-c and 0.988 for R-a, accurately explained the relationship between the response variable and the control factors.Duzce University Scientific Research Project DivisionDuzce University [BAP 2014.07.04.217]The authors wish to place their sincere thanks to Duzce University Scientific Research Project Division for financial support for the Project No: BAP 2014.07.04.217