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Ronan Asked :

17-06-2021 Manufacturing Engineering

Q. With an increase in rake angle of tool, tool life will

A. Increase
B. Decrease
C. Remains constant
D. First increase then decrease

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Dapzoi Verified
Commented on 2021-06-17 16:30:19 (IST)
Answer: D

Explanation: With an increase in rake angle chip flow rate increases and hence the heat generated is carried away with chips at faster rate due to which tool life increases. For large back rake angle, tool become very thin and its life decrease.