Modelling of guillotining process of grain oriented silicon steel using FEM

Magnetic materials are produced in large rolls that need to be cut to specific dimensions to make final products. The high residual stresses, sheet deformation and burr formation at cut surface during the cutting process leads to deterioration of magnetic properties of this materials. The paper focuses on the numerical and experimental analysis of guillotining process using FEM. In computer models dynamic effects, mechanical coupling, constitutive damage law and contact friction are taken into account. The effect of main process parameters on force characteristics, sheet deformation and burr formation on cut surface of grain oriented silicone steel is analyzed. The results of computer simulations can be used to forecasting quality of the final product.