The system for sheet metal forming design of complex parts

In the paper the system for sheet metal forming design is described. The system incorporates into finite element method the forming limit stress diagrams and the wrinkling criterion, as the limit conditions of forming and constitutive equations and boundary conditions describing the materials reaction on the complex deformation conditions. Application of the system for sheet metal forming design creates the possibility to design the sheet metal forming processes without expensive and time consuming trail and error techniques, so that the necessity of investigation by using real tools may be reduced or eliminated. The system will able to predict the forming loads, to create the geometry of the tools, to calculate the distribution of strain and stress and to determine the process condition.