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A single point cutting tool with 0° rake angle is used in an orthogonal machining process. At a cutting speed of 180 m/min, the thrust force is 490 N. If the coefficient of friction between the tool and the chip is 0.7, then the power consumption (in kW) for the machining operation is_____.
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- 2.1
- 3.1
- 2.2
- 2.11
Correct Option: A
α = 0
so
F = FT
N = Fc
| = | ||||
| N | Fc |
| = 0.7 | Fc |
Fc = 700 N
| Power = Fc × V = | = 2.1kw | 60 |