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IJAT Vol.6 No.6 pp. 728-735
doi: 10.20965/ijat.2012.p0728
(2012)

Paper:

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Fast Detection of Chatter in End-Milling Using Pseudo Auto-Correlation Function

Kenji Shimana*, Eiji Kondo**, Hiroko Karashima**,
and Norio Kawagoishi***

*Kagoshima National College of Technology, 1460-1 Shinko, Hayato-cho, Kirishima-shi, Kagoshima 899-5193, Japan

**Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan

***Daiichi Institute of Technology, 1-10-2 Kokubuchuo, Kirishima-shi, Kagoshima 899-4395, Japan

Received:
April 20, 2012
Accepted:
July 24, 2012
Published:
November 5, 2012
Creative Commons License
Keywords:
end-milling, chatter vibrations, detection, auto-correlation function, spindle head vibrations
Abstract
The chatter vibrations cause problems, such as the reduction of tool life, tool fracture, and a deterioration in the quality of the machined surface. This paper presents a fast detection method for expected chatter in high-speed end-milling. In this study, a pseudo auto-correlation function is applied to tool vibration data sampled at intervals as the spindle rotated at a constant angle. The calculation time for the pseudo auto-correlation function is expected to be shorter than that of the FFT method. As a result, it was indicated that detection reliability under the proposed method was approximately equal to the detection reliability by the previous methods by using tool vibration data sampled at constant intervals of time.
Cite this article as:
K. Shimana, E. Kondo, H. Karashima, and N. Kawagoishi, “Fast Detection of Chatter in End-Milling Using Pseudo Auto-Correlation Function,” Int. J. Automation Technol., Vol.6 No.6, pp. 728-735, 2012.
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References
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