Table 2.
L9 orthogonal array with experimental data.
| Expt. number |
v
(rpm) |
f
(mm/rev) |
d
(mm) |
v
(actual) |
f
(actual) |
d
(actual) |
MRR in (mm3/min) |
Surface roughness R
a
in (µm) |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 200 | 0.03 | 0.5 | 319.49 | 2.60 |
| 2 | 1 | 2 | 2 | 200 | 0.04 | 1.0 | 625.8 | 2.80 |
| 3 | 1 | 3 | 3 | 200 | 0.05 | 1.5 | 913.26 | 2.00 |
| 4 | 2 | 1 | 2 | 300 | 0.03 | 1.0 | 971.28 | 2.50 |
| 5 | 2 | 2 | 3 | 300 | 0.04 | 1.5 | 1155.08 | 2.80 |
| 6 | 2 | 3 | 1 | 300 | 0.05 | 0.5 | 493.13 | 3.40 |
| 7 | 3 | 1 | 3 | 400 | 0.03 | 1.5 | 1392.92 | 3.52 |
| 8 | 3 | 2 | 1 | 400 | 0.04 | 0.5 | 974.42 | 4.88 |
| 9 | 3 | 3 | 2 | 400 | 0.05 | 1.0 | 1211.15 | 3.44 |