Question

One plate (fluency effort 520 psi) is 2 in. Thick, 10 in. Wide, and 12 m long. The thickness is reduced in three steps of hot rolling. Each step will reduce the slab to 75% of its previous thickness. For this metal and this reduction, a widening of 3% is expected in each step. If the speed of entry of the plate in the first step is 40 feet / min and the speed of the roller is the same for the three steps, determine: a) the length and the exit speed of the plate after the final reduction .

Answer 1

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Given Speed of ro is same fov three Stces 21ok 40 0.84 3 (.27V.g V.S e. e