Modelling and experimental analysis of shear-slitting process of light metal alloys using FEM, SPH and vision-based methods

The paper focuses on the numerical and experimental analysis of physical phenomena occurring during the shear-slitting process of light metal alloys. The application of modern modeling techniques using FEM and less-mesh SPH method is presented. Three-dimensional computer models of the process are developed. Thanks to this, it is possible to include in the analyzes the influence of many technological parameters, so far omitted in literature such as: length of the cutting line and its shape, real dimensions of tools, methods of clamping sheet depending on its length and width. Developed models are used to analysis of residual stresses and strains in sheets during and after process under different conditions. The models have universal features in application to different types of materials, different thicknesses of cut sheets and their dimensions. The developed models are validated with experimental research by using vision-based solutions. The proposed advanced vision-based technology is a modern tool which provide accurate measurement of strip surface shape or deformation (displacement) [4]. In this paper this technology was also used to analysis of quantification of the extent to the edge of the region affected mechanically by slitting.