Abstract
Abstract
The development of a numerical model capable of simulating the forming processes characterized by additional reversible movement of tools is the subject of this paper. The major assumption of this process is the introduction of additional shear stresses into the material in order to induce the strain path change effect. The scope of the problem is very broad, so the focus in the present work is on the process of flat rolling with additional oscillatory movement of rolls along their axes. Due to the sophisticated nature of this process particular attention is paid to the reduction in computational time by minimizing the number of required finite elements. The developed model is used to study differences in material behaviour during rolling with different roll velocities. A detailed description of the developed numerical model and examples of obtained results are presented in this paper. A comparison with experimental analysis is presented, as well.