Railways Technical Ability Metal Forming, Casting and Cutting Question Bank Metal Cutting

  • question_answer Consider the following forces acting on a finish 1 turning tool:
    1. Feed force                 
    2. Thrust force
    3. Cutting force.
    The correct sequence of the decreasing order of the magnitudes of these forces is:

    A) 1, 2, 3              

    B) 2, 3, 1

    C) 3, 1, 2              

    D) 3, 2, 1

    Correct Answer: A

    Solution :

    A typical tool life equation for HSS is: \[v{{T}^{0.13}}{{f}^{0.6}}{{d}^{0.3}}{{r}^{0.1}}=C\] \[\therefore \,\,v>f>d>r\]

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