期刊
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
卷 56, 期 -, 页码 10-16出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijmachtools.2011.12.001
关键词
Chatter frequency; Micromilling; Clamping condition; Process damping; Piezoactuator; Online chatter detection
资金
- Deutsche Forschungsgemeinschaft DFG (German Research Foundation)
The chatter frequencies in micromilling operations are affected by various structural factors and cutting conditions. In this paper the influences of damping properties, clamping conditions, and the shank length of microend mills are investigated by experiments and analytical solutions. As is well-known, it is challenging to experimentally identify the tool tip dynamics of a micromilling system and thus to predict the chatter stability. This paper presents a new measuring method for online chatter detection. Using external excitations via piezoelectric actuators, chatter frequencies can be identified with an axial depth of cut lower than the actual stability boundary. (c) 2011 Elsevier Ltd. All rights reserved.
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