Question:-
Consider the following tool materials:
1. HSS
2. Cemented carbide
3. Ceramics
4. Diamond
The correct sequence of these materials in decreasing order of their cutting speed is
Option (A)
4, 3, 1, 2
Option (B)
4, 3, 2, 1
Option(C)
3, 4, 2, 1
Option(D)
3, 4, 1, 2
Correct Option:
(B)
Question Solution:
Cutting speed of diamond is very high but small feed rate with low depth of cut.
In case of HSS ® 30m/min
Ceramic ® 400 m/min (maximum operating speed) or 2 t 3 time the speed of cemented carbide.
question-answer-faq-8403