GATE ME 2020 Set 1 — Question 42
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Manufacturing Processes → Forming → Rolling (Load & Torque)
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Question
A strip of thickness is to be rolled to a thickness of using a two-high mill having rolls of diameter . Coefficient of friction and arc length in mm, respectively are
Correct answer
(D) 0.45 and 44.72
Solution
Given:
Initial thickness
Final thickness
Roll diameter Roll radius
.
.
Initial thickness
Final thickness
Roll diameter Roll radius
1.Coefficient of friction ():
For the strip to be pulled in, the maximum possible draft is ..
.
2.Arc length ():
.Thus, the values are and .Continue learning with Success Tracker
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