✦ LIBER ✦

TIME SERIES ANALYSIS IN METAL CUTTING: CHATTER VERSUS CHATTER-FREE CUTTING

✍ Scribed by J. Gradisek; E. Govekar; I. Grabec

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 375 KB
Volume: 12
Category: Article
ISSN: 0888-3270
DOI: 10.1006/mssp.1998.0174

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✦ Synopsis

Time series of cutting forces under two different regimes of turning on a lathe were analysed. With an increase of cutting depth the cutting regime was changed from chatter-free cutting to one with chatter. Using three different surrogate data tests, the dynamics of chatter-free cutting were found to be consistent with a linearly correlated random process, whereas the dynamics of chatter could be explained by a low-dimensional, presumably weakly chaotic process. The differences in the dynamics of the two cutting regimes were exploited successfully for the purpose of chatter detection.

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