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Ef?ciency of transferring energy

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One stand of a hot-rolling mill is being designed. It will a reduced 60-in.-wide sheet from 0.150 to 0.120 in. thickness at an exit speed of 20 feet per second. Assume that the ?ow stress of the steel at the temperature and strain rate in the rolling mill is 1500 psi. If the deformation ef?ciency is 82% and the ef?ciency of transferring energy from the motor to the mill is 85%, what horsepower motor should be used?

Reference no: EM13887560

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