Research Article
Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel
Table 7
Mean response table for Ra and Cp factors.
| | Levels | Control factors | | Surface roughness (Ra) | | Cutting power (Cp) | | Tool type | Cutting speed | Feed rate | Tool type | Cutting speed | Feed rate |
| | Level 1 | 1.3361 | 0.9477 | 1.2172 | 601.8 | 411.2 | 565.5 | | Level 2 | 1.6154 | 1.2633 | 1.5023 | 554.4 | 608.5 | 573.5 | | Level 3 | | 2.2163 | 1.7078 | | 714.7 | 595.3 | | Delta | 0.2793 | 1.2687 | 0.4907 | 47.3 | 303.5 | 29.8 | | Rank | 3 | 1 | 2 | 2 | 1 | 3 |
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