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Table 4 The S/N ratio and normalized values for input parameters

From: Taguchi-fuzzy multi-response optimization in fly cutting process and applying in the actual hobbing process

Exp. no. The cutting force Temperature Surface roughness
Fy (N) Fz (N) R S/N (R) Fz/Fy S/N (Fz/Fy) t S/N (t) Ra S/N(Ra)
1 277.8 78.3 288.62 − 49.2066 0.282 − 10.9994 32.6 − 30.2644 0.1817 14.8129
2 232.6 73.6 243.97 − 47.7466 0.316 − 9.99464 29.3 − 29.3374 0.1175 18.59924
3 190.8 61.7 200.53 − 46.0435 0.323 − 9.80586 24.7 − 27.8539 0.2022 13.88438
4 282.9 77.3 293.27 − 49.3454 0.273 − 11.2691 32.1 − 30.1301 0.3705 8.624236
5 255.2 72.1 265.19 − 48.4711 0.283 − 10.9789 27.6 − 28.8182 0.312 10.11691
6 235.6 70.1 245.81 − 47.8119 0.298 − 10.5291 24.1 − 27.6403 0.5125 5.806123
7 293.3 82.2 304.60 − 49.6746 0.280 − 11.0488 34.7 − 30.8066 0.5888 4.600644
8 282.8 80.8 294.12 − 49.3704 0.286 − 10.8814 30.9 − 29.7992 0.4327 7.276262
9 260.1 74 270.42 − 48.6408 0.285 − 10.9182 27.0 − 28.6273 1.0337 − 0.28789
10 282.4 75.2 292.24 − 49.3148 0.266 − 11.4929 34.8 − 30.8316 0.1423 16.9359
11 246.3 72.3 256.69 − 48.1883 0.294 − 10.6465 30.1 − 29.5713 0.0894 20.97325
12 222 69.1 232.51 − 47.3287 0.311 − 10.1375 25.1 − 27.9935 0.161 15.86348
13 296.2 78.3 306.37 − 49.7251 0.264 − 11.5565 34.0 − 30.6296 0.3059 10.28841
14 262.8 74.1 273.05 − 48.7247 0.282 − 10.9961 29.1 − 29.2779 0.25 12.0412
15 242.9 70.9 253.04 − 48.0636 0.292 − 10.6956 27.7 − 28.8496 0.57 4.882503
16 295 84.6 306.89 − 49.7397 0.287 − 10.849 36.2 − 31.1742 0.3565 8.958809
17 283 80.8 294.31 − 49.3761 0.286 − 10.8875 32.3 − 30.1841 0.4319 7.292336
18 263.5 76.2 274.30 − 48.7644 0.289 − 10.7765 28.2 − 29.0050 0.9397 0.540215