Question:-
Specific cutting energy is more in grinding process compared to turning because
Option (A)
grinding (cutting) speed is higher
Option (B)
the wheel has multiple cutting edges (grains)
Option(C)
ploughing force is significant due to small chip size
Option(D)
grinding wheel undergoes continuous wear
Correct Option:
(B)
Question Solution:
Specific cutting energy is more in grinding process compared to turning because wheel has multiple cutting edges with more of negative rake angle. Then more force required at some point.
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