A 250 mm wide strip of 20 mm thickness is reduced to 18 mm in a single pass through a rolling process. the radius of each roller is 200 mm and its speed is 150 RPM. The strength coefficient for work...

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Extracted text: A 250 mm wide strip of 20 mm thickness is reduced to 18 mm in a single pass through a rolling process. the radius of each roller is 200 mm and its speed is 150 RPM. The strength coefficient for work material is 280 N/mm and the value of strain hardening coefficient is 0.15. The coefficient of friction between the workpiece and the rolls is 0.12. Find the roll force, torque and power required per roll.