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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. 
    Assuming approach and over-travel of the cutting tool to be zero, the machining time in min is
  2. A.
    2.93
    B.
    5.86
    C.
    6.66
    D.
    13.33

    View Answer

    Workspace

    Answer : Option A

    Explanation :

    -NA-


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