Simulation of Machining Operations Based on the VMT Concept

This section focusses on the dynamic modelling of the machine tool including its computer numeric control, and its interaction with the machining process. To properly simulate modern machine tools in machining condition, the virtual machine tool model based on SAMCEF Mecano is used to account for close interaction between the dynamic behaviour of the mechanical structure, drives and the control. To fully capture the dynamic behaviour of the machine, force interactions between the cutting tool and the workpiece are also considered. A strong coupling between the mechatronic model of the machine tool and a machining simulation tool is implemented. A specialized cutting force element has been developed. It considers the dynamics of the tooltip combined with the tool-workpiece engagement to generate cutting forces. The use of such digital twin model is demonstrated considering some machining operations.