Abstract Scope |
Optimizing machining conditions is essential for enhancing machining quality. This study proposes an approach to optimize machining conditions using a digital twin of a machine tool. The digital twin integrates key components, including the controller, feed drive system, and physical models based on cutting theory to estimate machining quality. It enables virtual experiments that incorporate the machine’s dynamic behavior and control characteristics, offering a more accurate representation of the machining process. Based on these virtual experiment results, optimization techniques adjust the feed rate and spindle speed. This approach provides precise optimization by calculating machining quality as influenced by control characteristics and dynamic behavior, which traditional methods, such as design of experiments or basic models, cannot account for. The method is validated by comparing machining quality and machining time between non-optimized and optimized conditions, along with assessing the accuracy of the digital twin’s predictions.
Acknowledgment: This work was supported in part by the Technology Development Program for Smart Controller in Manufacturing Equipment (No. 20012834, Development of Smart CNC Control System Technology for Manufacturing Equipment) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) and in part by a Korea Institute for Advancement of Technology (KIAT) grant funded by the Korean Government (MOTIE) (No. P00020616, The Competency Development Program for Industry Specialist). |