Abstract
This paper presents a mathematical model to simulate the mechanics in a steady continuous bending mode for four-roll thin plate bending process. The differential equations governing the large deflection bending of elastic-perfectly plastic thin plate are derived by modelling the loading and unloading deformation of the operational process. Through a semi-analytical solution of the system equations, the physical quantities of (i) the deformation and stress resultants of bend plate, (ii) the springback, (iii) the shift of contact-angle of bend plate with rolls, (iv) the applied forces on rolls, (v) the bending torque and power, and (vi) the position of the operative side roll, etc., associated with bending of a plate to an anticipated curvature, for single-pass bending operation, are predicted and discussed.
Published Version
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