Paper Title:

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

Periodical Key Engineering Materials (Volumes 375 - 376)
Main Theme Advances in Machining & Manufacturing Technology IX
Edited by Yingxue Yao, Xipeng Xu and Dunwen Zuo
Pages 564-568
DOI 10.4028/www.scientific.net/KEM.375-376.564
Citation Qing Hua Song et al., 2008, Key Engineering Materials, 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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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.