Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 4 (Q.No. 33)
33.
In drilling operation, the metal is removed by
shearing
extrusion
shearing and extrusion
shearing and compression
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Jayanta said:   8 years ago
Correct answer is option C.

The high thrust force caused by the feeding motion first extrudes metal under the chisel edge. Then it tends to shear under the action of a negative rake angle tool.
(1)

Bharath said:   6 years ago
Answer C is correct:

In my point of view, material cut by shear and material come out by extrusion.

Adarsh said:   8 years ago
It should be shearing not extrusion.

Jay shukla said:   8 years ago
Shearing and compression.

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