Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 4 (Q.No. 10)
10.
Low helix angle drills are preferred for drilling holes in
plastics
copper
cast steel
carbon steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 2 of 2.

Amiya mishra said:   9 years ago
(c) is correct answer /as low helix angel preferred for drilling a hole in hard and brittle material as helix angle decreases rake of cutting edge decreases hence cutting edge becomes stronger.


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