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The 3-roll rolling process is analyzed by the energy method. A simplified admissible velocity field defined by three variable parameters is introduced. The solutions are derived by minimizing the consumed energy rate. Numerical calculations are done for hexagon-flat pass and the results are compared with the experiments. Both results on the roll torque and reduction in cross-sectional area agree satisfactorily.

Theoretical analysis of 3-roll rolling process by the energy method.