Simultaneous identification of milling and structural dynamics parameters under stable cutting using table-side disturbance forces

This study proposes a novel identification method that excites asynchronous uncut chip thickness variations under stable conditions, without inducing chatter vibrations. The accuracy of milling simulation depends on accurate identification of model parameters. Existing in-process identification methods require weak chatter vibrations to generate asynchronous variations, which limits their applicability in practical machining. Using only disturbance forces measurable at the table side, the proposed method simultaneously identifies cutting parameters and structural dynamic parameters. Numerical simulations and cutting experiments demonstrate that the identified parameters agree with those obtained by conventional offline methods, confirming the validity and practical applicability of the proposed approach.