Journal
CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 71, Issue 1, Pages 361-364Publisher
ELSEVIER
DOI: 10.1016/j.cirp.2022.04.045
Keywords
Machine tool; Friction; Dynamics
Funding
- NSERC--CANRIMT2 net- work in Canada
- MIRAGED project [CER-20191001 CDTI-CERVERA]
- [NETGP 479639-15]
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This paper studies the impact of guideway friction on TCP dynamics and proposes experimental and testing methods for more accurate characterization of TCP receptance and chatter stability predictions.
Motivated by the fact that the tool cutting point (TCP) receptance demonstrates significant variation between the idle and in-motion conditions of a machine tool, this paper studies the relationship between guideway friction and TCP dynamics. The fundamental effect is modelled and demonstrated on a laboratory testbench considering structural mechanics, servo dynamics, and guideway friction. The findings are then extended to an industrial-scale machine, for which improved measurement of the TCP receptance is obtained using a dedicated inertial linear actuator. Finally, practical in-motion impact hammer testing guidelines are proposed for more accurate characterization of the TCP receptance and chatter stability predictions. (c) 2022 CIRP. Published by Elsevier Ltd. All rights reserved.
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