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

  • question_answer In a single-point turning operation of steel with a cemented carbide tool, Taylor's tool life exponent is 0.25. If the cutting speed is halved, the tool life will increase by:

    A) Two times                     

    B) four times

    C) Eight times                    

    D) sixteen times

    Correct Answer: D

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