Abstract
Abstract
The vibrations occurring in the machining process affect the component surface and the production quality. For improved process examination, the three-dimensional finite element method (FEM) simulation of the chip formation is illustrated using the example of longitudinal surface turning while taking the process dynamics into account. Owing to the tool holder and the component with the clamping device, a system limit is defined with a flexibility which will be determined through experiments. The dynamics of the machine tool are illustrated with the FEM using simplified substitute models and coupled to the finite element model of the chip formation. As a result, in addition to the dynamics of the machine tool, the complex mechanisms of the chip formation resulting from the major deformations and heating are also approximately taken into account through the simulation of the chip formation. The results include not only the machining forces and the temperatures in the component and chips, but also determination of the movements of the component and tool holder, and with them the illustration of the vibrations.