Modelling of a roll-forming process with a combined 2D and 3D FEM code

摘要

In roll-forming of steel sheets, flat strips are progressively deformed by successive sets of rotatingrolls. A specific FE code, PROFIL, has been developed in order to analyse the complete strain historyof the material, and it has the function to attain the optimisation of the design roll profiles. This designsystem is based on the elastic-plastic FEM, where a 2D cross-section analysis with moving boundaryconditions is combined with a 3D analysis between a set of roll-stands. Deformed geometry andstrain distributions predicted by simulations are compared with the results from previously conductedexperiments. Channel sections of all types and complexity can be investigated.