GATE ME 2014 Set 4 — Question 31
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Question
Two separate slab milling operations, 1 and 2, are performed with identical milling cutters. The depth of cut in operation 2 is twice that in operation 1. The other cutting parameters are identical. The ratio of maximum uncut chip thicknesses in operations 1 and 2 is _______
Correct answer
0.7 to 0.72
Solution
In slab milling, the maximum uncut chip thickness () is given by the formula:where is the feed per tooth, is the depth of cut, and is the cutter diameter.
Since all other parameters (cutter, feed, diameter) are identical, .
Given , the ratio of maximum uncut chip thicknesses in operations 1 and 2 is:
Since all other parameters (cutter, feed, diameter) are identical, .
Given , the ratio of maximum uncut chip thicknesses in operations 1 and 2 is:
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