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

  • question_answer In idealized chip formation, built-up edge will break off and remove some of the cutting tool materials, thereby reducing tool life. Which of the following steps prevent built-up edge?
    1. Increasing cutting speed
    2. Increasing feed rate
    3. Increasing ambient workpiece temperature
    4. Decreasing rake angle
    5. Reducing friction.
    Select the correct answer using the code given below:

    A) 1, 2 and 3                     

    B) 2, 3 and 4

    C) 1, 3 and 5                     

    D) 2, 4 and 5

    Correct Answer: C


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