Numerical Simulation And Effects Of Forming Parameters On Roll Forming For Channel Section

Channel section steel is a kind of economic cross section steel, the products are widely used in automobile, aviation, light industry, machinery manufacture and construction areas. The roll forming is a very complex process, in which the deformation is a combination of several deformations including lateral bending, longitudinal tensile and lateral shear deformation, et al. It includes not only the deformation process with geometric nonlinearity, material nonlinearity and contact boundary nonlinearity, but also so many effects on its forming process, so it is a quite difficult task to simulate this process precisely. Nowadays, nobody has presented a kind of very perfect and precise analysis method in the world. The design of pass schedules and roll profiles mainly remains more an art than a science.Firstly, this paper introduce the present and prospective development, moreover compared advantage and short of different roll forming theory. Subsequently simplified process and analyzable model of channel section according to deforming elastic-plastic macro deforming finite element theory. MARC is used to predict stress and strain distributions predicted by simulations, at the same time, the deformation of sheet geometry can also be simulated during and after the process. At last, the general regulation of various forming parameters' effects on the channel section is obtained. The forming process of the channel is simulated successfully and the results coincide with experimental result in relational document. The validity of this model is proved further. The work provides a reliable prediction model for cold roll forming CAD system in future, so it supplies practical production with a valuable reference.