Mechanical Engineering - Production Engineering - Discussion
Discussion Forum : Production Engineering - Section 8 (Q.No. 45)
45.
The cutting speed for counter-boring should be __________ that of drilling operation.
Discussion:
11 comments Page 1 of 2.
Jeet said:
3 years ago
Speed of counter boring and counter sinking is 25% less than drilling.
(1)
Manish said:
4 years ago
Counterboring produces finish hole and drilling produces rough hole followed by reaming so with high speed surface finish is good.
(1)
Walter said:
6 years ago
B. Less than is right.
Rajat bhardwaj said:
6 years ago
B) cutting speed of couterboring and countersinking is atlest 25% lesser than that of drilling.
Anudeep said:
6 years ago
Option B is correct because with an increase in dia speed increases whereas for spindle speed decrease.
GOURANGA SAHOO said:
7 years ago
The correct answer is B.
Prafull said:
7 years ago
It is Less than 0.25 times drilling operation.
Pooja said:
7 years ago
But if speed is more than finishing will not be good and boring is an enlarging operation in which finishing is high so how option C is correct?
(2)
S singh said:
7 years ago
Speed of counter boring is half of that of drilling.
Mak said:
7 years ago
I think B is the correct answer.
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