Research Article
An Investigation on Speed Control of a Spindle Cluster Driven by Hydraulic Motor: Application to Metal Cutting Machines
Table 9
Surface roughness results for samples 4, 5, and 6.
| Machining parameters | Sample | Surface roughness Rz (μm) | Average of Rz (μm) | Roughness Grade |
| = 1100(rpm) | 4 | 27.105 | 26.5353 | ~ 5 | S= 30(mm/min) | 5 | 27.568 | t= 0.2(mm) | 6 | 24.933 |
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