Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 6 (Q.No. 46)
The lip clearance angle should decrease towards the centre of the drill than at the circumference.
Answer: Option
No answer description is available. Let's discuss.
2 comments Page 1 of 1.

Baba said:   5 years ago
Drill velocity is maximum at the periphery, so material removed is more in comparison to that if we move towards centre. Larger clearance at the periphery would reduce the rubbing of drill and prevent wear.

Sara said:   5 years ago
Anybody can explain this please?

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