Mechanics of the H-Beam Rolling in the Universal Beam Groove

摘要

The formulation and solution of the problem of double -T section rolling in universal groove using the variational principle of minimum total power with aim to determine integral forming and energy-power parameters are presented. Geometrical model of the deformation zone and the kinematically admissible velocity field were constructed accurate within two unknowns: forward slip coefficient v, flange spread (pulling-down) △h_f. The comparison of the calculated values with the experimental data obtained on a laboratory mill 200 confirmed that the variational principle of minimum total power has sufficient accuracy for analysis of double -T section rolling in universal groove. The mean statistical error of torque calculation is 12.3 % while load calculation is 18.7 %.