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. 2015 Jan 12;15(1):1274–1291. doi: 10.3390/s150101274

Table 4.

Machining parameters and their levels.

Parameters Levels

1 2 3
Cutting speed V, (m/min) 76 114 170
Feed rate f, (mm/rev) 0.05 0.08 0.12
Depth of cut a, (mm) 0.40 0.60