1. What factors contributes to spreading in flat rolling? Estimate the roll force, and power for annealed low-carbon steel strip 200 mm wide and 10 mm thick, rolled to a thickness of 6 mm. The roll radius is 200 mm, and the roll rotates at 400 rpm. Given that the strength coefficient, K=530 MPa and the strain hardening exponent, n=0.26 C llo