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

  • question_answer For the manufacture of full depth spur gear by hobbing process, the number of teeth to be cut = 30, module = 3 mm and pressure angle = \[20{}^\circ \] The radial depth of cut to be employed should be equal to:

    A) 3.75 mm                      

    B) 4.50 mm

    C) 6.00 mm                      

    D) 6.75 mm

    Correct Answer: D

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