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Discussion :: GATE Production

  1. A disc of 200 mm outer and 80 mm inner diameter is faced at a feed of 0.1 mm/rev with a depth of cut of 1 mm. The facing operation is undertaken at a constant cutting speed of 90 m/min in a CNC lathe. The main (tangential) cutting force is 200 N. 
    Neglecting the contribution of the feed force towards cutting power, the specific cutting energy in J/mm3 is
    2. A.
    0.2
    B.
    2
    C.
    200
    D.
    2000

    View Answer

    Workspace

    View Answer

    Answer : Option B

    Explanation :

    -NA-

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