A 300 mm thick slab is being cold rolled using roll of

Home » Materials Science and Manufacturing Engineering » Materials Science and Manufacturing Engineering Miscellaneous » Question

A 300 mm thick slab is being cold rolled using roll of 600 mm diameter. If the coefficient of friction is 0.08, the maximum possible reduction (in mm) is_______.

1. 1.92
2. 1.95
3. 1.94
4. 1.99

Correct Option: A

Maximum possible reduction
= ∆ H/pass = µ²R
= 0.08² × 300 = 1.92 mm