Published: 31 March 2011

Vibrations in stainless steel turning: multifractal and wavelet approaches

Grzegorz Litak1
Rafal Rusinek2
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Abstract

We investigate the experimental data of the turning process and the appearance of chatter vibrations. We focused on the turning of stainless steel as the example of a special material, which belongs to a hardly machinable class. To characterize the vibration properties we used statistical, multifractal, and wavelet analyses. The multifractal approach estimates complexity of the examined time series of the cutting thrust force. We report that the evolution of the vibration towards fairly large amplitude unwanted chatter with the increasing cutting depth coincides with lowering of the complexity. The results have been confirmed by continuous wavelet analysis.

About this article

Received
02 November 2010
Accepted
04 February 2011
Published
31 March 2011
Keywords
vibrations
stainless steel
multifractal
wavelet