Table 3
Experimental results and S/N values − TF, SR and BH.
| Expt. No | F (mm/min) | S (rpm) | D | TF (N) | S/N of TF | SR (μm) | S/N of SR | BH (mm) | S/N of BH |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 50 | 1000 | HSS | 122.2 | –41.741 | 3.89 | –11.8 | 0.176 | 15.09 |
| 2 | 50 | 2000 | Carbide | 94.06 | –39.468 | 2.50 | –7.97 | 0.101 | 19.91 |
| 3 | 50 | 3000 | TiN coated | 110.8 | –40.891 | 2.49 | –7.91 | 0.101 | 19.91 |
| 4 | 100 | 1000 | Carbide | 198.5 | –45.955 | 4.31 | –12.7 | 0.179 | 14.94 |
| 5 | 100 | 2000 | TiN coated | 167.2 | –44.465 | 3.44 | –10.74 | 0.158 | 16.03 |
| 6 | 100 | 3000 | HSS | 194.7 | –45.787 | 2.73 | –8.73 | 0.149 | 16.54 |
| 7 | 150 | 1000 | TiN coated | 264.2 | –48.439 | 4.54 | –13.15 | 0.223 | 13.03 |
| 8 | 150 | 2000 | HSS | 277.5 | –48.865 | 3.54 | –10.99 | 0.193 | 14.29 |
| 9 | 150 | 3000 | Carbide | 159.7 | –44.066 | 2.89 | –9.2 | 0.143 | 16.89 |
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