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Materials Science and Manufacturing Engineering Miscellaneous

Materials Science and Manufacturing Engineering

  1. 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_____.
    1. 2.1
    2. 3.1
    3. 2.2
    4. 2.11
Correct Option: A

α = 0
so
F = FT
N = Fc

F
=
FT
NFc

490
= 0.7
Fc

Fc = 700 N
Power = Fc × V =
700 × 180
= 2.1kw
60



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