An Aluminum alloy billet with Diameter

An Aluminum alloy billet with Diameter of 277mm and Length of 563mm is to be extruded using direct extrusion at temperature above the recrystallization temperature to solid bar of a diameter of of 52mm. If the extrusion lubrication was poor, the Johnson equation, a = 0.8 and b = 1.4, the ram speed is 84mm/s and the materials constants are K=365MPa, n=0.31, C=219MPa and m = 0.19, then find the power needed for the process (W)

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