OBRABOTKAMETALLOV MATERIAL SCIENCE Том 23 № 3 2021 EQUIPMEN . INSTRUM TS Vol. 5 No. 4 2023 Ta b l e 2 Experimental matrix for AISI 304 stainless steel (V: Cutting speed, f: Feed, and d: Depth of cut) Parameters Expt. Run 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 V (m/min) 300 350 350 250 250 300 300 300 200 400 350 250 350 250 300 f (mm/rev) 0.1 0.08 0.12 0.08 0.12 0.05 0.1 0.15 0.1 0.1 0.08 0.12 0.12 0.08 0.1 D (mm) 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.1 Results and Discussion Turning experiments were performed on a CNC lathe using the cutting modes depicted in table 2. The surface roughness, three components of cutting force, namely, Fc, Ff, and Fr, and tool life (T) were measured until the flank wear reached 0.2 mm. Experimental results with different tools, namely PVD-AlTiN coated (C) tool, PVD-AlTiN coated-microblasted (CMB), and MTCVD-TiCN/Al2O3 coated (MTCVD), are depicted in table 3. Performance modeling Experimentally validated mathematical models were developed for the responses considered in this study for the various tools to better understand the turning characteristics. The regression equations were Ta b l e 3 Experimental results in turning AISI 304 with different tools Run no. PVD-AlTiN coated (C) tool PVD-AlTiN coated-microblasted (CMB) MTCVD-TiCN/Al2O3 coated (MTCVD) Fc (N) Ff (N) Fr (N) Ra (µm) T (min) Fc (N) Ff (N) Fr (N) Ra (µm) T (min) Fc (N) Ff (N) Fr (N) Ra (µm) T (min) 1 108 44 17 0.93 8.1 118 48 21 0.88 9.81 111 55 26 1.14 18.4 2 69 27 15 0.62 10.3 69 33 16 0.57 11.2 78 38 21 0.69 14.4 3 98 41 16 0.68 7.6 98 43 21 0.74 6.8 118 53 26 0.85 9.3 4 78 31 16 0.72 14.4 88 36 17 0.77 16.4 98 40 22 0.85 21.3 5 88 51 18 0.87 11.2 137 51 23 0.96 11.1 137 56 27 1.05 14.3 6 59 22 13 0.47 18.1 49 18 12 0.45 19.5 49 22 17 0.55 24.6 7 69 33 14 0.65 12.6 69 35 18 0.65 13.9 88 40 24 0.74 18.8 8 88 47 17 0.83 10.4 98 46 26 0.81 10.3 121 59 34 0.97 14.6 9 78 34 16 0.96 15.1 88 38 20 0.93 15.9 98 45 26 0.99 22.1 10 59 29 15 0.42 6.8 69 33 18 0.50 7.2 78 40 23 0.62 9.4 11 48 19 11 0.39 14.8 39 22 14 0.42 16.4 39 29 21 0.47 18.6 12 61 33 14 0.66 15.3 59 40 19 0.70 16.3 78 40 27 0.72 20.8 13 56 31 13 0.51 10.6 59 33 18 0.52 11.8 59 45 26 0.65 15.7 14 54 23 12 0.57 17.6 39 28 14 0.61 21.8 49 28 22 0.62 26.6 15 39 17 10 0.37 16.4 29 24 13 0.40 17.4 29 23 21 0.46 22.6
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