Numeric Al Simulation Of High Strength Sheet Metal Roll-bending Forming

Metal plate roll-forming, whose equipment structure is simple, is a kind of common sheet metal processing method. But its deformation mechanism is very complicated and difficult to express it in an accurate mathematical relationship, for it’s very complex and large elastic-plastic deformation process,with both the material nonlinear, geometric nonlinear, and nonlinear boundary condition.With the development of large-scale finite element simulation software, the finite element technique is widely used in plate bending forming.But the existing research is mainly based on the simulation of small size, few studies on the forming of large size workpiece, the geometry model of the single beam theory is established based on the size of sheet, plate as the research object, established the finite element model of plate finite element analysis platform based on ABAQUS, the influence factors of big size sheet springback radius are analyzed, through orthogonal experiment, studied the effect of die parameters and technological parameters on springback; and for numerical simulation of half circular workpiece, through the simulation results before and after optimization and experimental and comparative effectiveness, rationality and optimization of thegeometrical model and finite element model.By combining the actual roll bending forming process and numerical simulation technology, can achieve the optimal allocation of roll bending process parameters and improve the precision of large scale sheet forming, so it has the extremely significant to shorten the production cycle, reduce the cost and improve product quality.