Mechanical Engineering - Production Engineering - Discussion

Discussion Forum : Production Engineering - Section 1 (Q.No. 40)
40.
In up milling, the thickness of chip is
minimum at the beginning of the cut and maximum at the end of the cut
maximum at the beginning of the cut and minimum at the end of the cut
uniform throughout the cut
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 1 of 2.

Venkatesh said:   10 years ago
Because in up milling process, work piece is fed in opposite direction to the cutting edge of the cutter, so it removes maximum amount of material at the end.

Surendra said:   9 years ago
In up milling, chip thickness starts from zero and increases to the maximum.

In down milling, chip thickness starts from maximum to zero.

Midhun said:   9 years ago
What is surface milling?

Hgji said:   8 years ago
Yes, B is the correct answer.

Ranjit said:   8 years ago
I think B is the correct option.

Ravi said:   8 years ago
I agree with the given answer A.

Ravikant said:   8 years ago
Up milling: Milling cutter is fed in opposite direction of workpiece movement, chip thickness start from zero to max. Also, opposite force tries to lift the workpiece. Since chip thickness starts from zero to max, hence initially it rubs the workpiece resulting poor surface finish.

Anwar said:   8 years ago
The chip thickness starts at zero and increases toward the end of the cut. Cutting forces tend to push the cutter and workpiece away from each other. ANSWER A is right.

Vijay said:   7 years ago
A is the correct answer.

Gautam said:   7 years ago
Option A is right, I agree with the given answer.
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