NUMERICAL SOLUTION OF HOT SHAPE ROLLING OF STEEL

The modeling of hot shape rolling of steel is represented by using a meshless method. The physical model consists of coupled thermal and mechanical models. Both models are numerically solved by using a strong formulation. The material is assumed to behave ideally plastic. The model decomposes the 3D geometry of the steel billet into a traveling 2D cross section which lets us analyze the large shape reductions by a sequence of small steps. A uniform velocity over each of the cross-sections is assumed. The meshless method, based on collocation with radial basis functions is used to solve the thermo-mechanical problem. The node distribution is calculated by elliptic node generation at each deformation step to the new form of the billet. The solution is calculated in terms of temperatures and displacements at each node. Preliminary numerical examples for the new rolling mill in Store Steel are shown.