Research Article
Investigation on Effect of Material Hardness in High Speed CNC End Milling Process
Table 4
ANOVA for Response-1 surface roughness (
).
| Source | Sum of squares | df. | Mean square | -value | value Prob. > |
| Model | 22.50 | 14 | 1.61 | 17.27 | <0.0001 | , speed | 14.04 | 1 | 14.04 | 150.91 | <0.0001 | , feed | 1.06 | 1 | 1.06 | 11.42 | 0.0045 | , DoC | 0.046 | 1 | 0.046 | 0.49 | 0.4952 | , insert type | 0.84 | 1 | 0.84 | 9.00 | 0.0095 | | 0.13 | 1 | 0.13 | 1.39 | 0.2576 | | 0.18 | 1 | 0.18 | 1.90 | 0.1901 | | 0.96 | 1 | 0.96 | 10.32 | 0.0063 | | 0.72 | 1 | 0.72 | 7.77 | 0.0146 | | 0.53 | 1 | 0.53 | 5.65 | 0.0323 | | 0.078 | 1 | 0.078 | 0.84 | 0.3742 | | 0.31 | 1 | 0.31 | 3.29 | 0.0914 | | 0.012 | 1 | 0.012 | 0.13 | 0.7229 | | 0.24 | 1 | 0.24 | 2.53 | 0.1342 | | 2.90 | 1 | 2.90 | 31.22 | <0.0001 |
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