1.

A 4 mm thick sheet is rolled with 300 mm diameter rolls to reduce thickness without any change in its width. The friction coefficient at the work-roll interface is 0.1. The minimum possible thickness of the sheet that can be produced in a single pass is:

A. 1.0 mm
B. 1.5 mm
C. 2.5 mm
D. 3.7 mm
Answer» D. 3.7 mm


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