Prediction of chatter stability in high-speed finishing end milling considering multi-mode dynamics

被引:37
|
作者
Tang, W. X. [1 ]
Song, Q. H. [1 ]
Yu, S. Q. [2 ]
Sun, S. S. [1 ]
Li, B. B. [1 ]
Du, B. [1 ]
Ai, X. [1 ]
机构
[1] Shandong Univ, Sch Mech Engn, Jinan 250061, Shandong, Peoples R China
[2] Beijing Univ Technol, Sch Software Engn, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
Stability prediction; High-speed milling; Chatter; Multi-mode dynamics; Frequency response function;
D O I
10.1016/j.jmatprotec.2008.06.003
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The strong demand for increasing productivity and workpiece quality in high-speed milling make the machine-tool system has to operate close to the limit of its dynamic stability. This requires that the chatter stability is predicted accurately to determine the optimal milling parameters. An analytical stability prediction method was proposed with multidegree-of-freedom (MDOF) system modal analysis. This paper describes the development of this new method which allows considering the effects of multi-mode dynamics of system, higher excited frequency (i.e. tooth passing frequency) and wider spindle speed range on stability limits in high-speed milling, and these to help in selection of milling parameters for a maximum material removal rates (MRR) in real operations without chatter. Some tests were carried out to demonstrate the quality of this method used in real machining. Final, the main influencing factors of stability limits in high-speed milling were analyzed. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:2585 / 2591
页数:7
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