Prediction of Multiple Frequencies Chatter Stability in High-Speed Milling System

Abstract:

A new dynamics model for multi-degree of freedom high-speed milling system is proposed, which takes account of regenerative effects and the effects of the relative vibration of spindle axis in milling process. Based on the mode synthesis theory and the zeroth-order approximation of the Fourier series, an integrated stability analytical method for multiple frequencies is presented, which involves multiple orders modal characteristics and higher order excitations in high-speed milling process. The chatter stability lobes are predicted in the frequency domain using the proposed stability analytical method, and verified by milling experiments. It is shown that stability regions involving multiple natural modes are reduced contrary to the case of single natural mode.

• Periodical: Key Engineering Materials (Volumes 375-376)
• Pages: 564-568
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.375-376.564
• Online since: March 2008
• Authors: Qing Hua Song, Xing Ai, Wei Xiao Tang, Yi Wan
• Keywords: Chatter, Frequency Response Function (FRF), High Speed Milling (HSM), Stability Limit

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