Optimizing Machining Time and Oscillation based on Digital Twin Model of Tool Center Point

This paper proposes the machining time optimization and surface quality improvement based on a digital twin model of machine tools. This model considers servo loops, feed drive system, and tool center point (TCP) effects which were constructed simultaneously. The frequency response of the actual machine was excited by a swept sinusoidal waveform then the digital twin model was identified. Finally, the parameters of controller tuned on digital twin model to achieve the optimizing machining time and decrease the oscillation of TCP.