한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 2002년도 춘계학술대회 논문집
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- Pages.1063-1066
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- 2002
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- 2005-8446(pISSN)
Wavelet 변환을 이용한 공구파손 검출
Detection of Tool Failure by Wavelet Transform
- Yang, J.Y. (Graduate, PKNU) ;
- Ha, M.K. (PKNU) ;
- Koo, Y. (PKNU) ;
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Yoon, M.C.
(PKNU) ;
- Kwak, J.S. (PKNU) ;
- Jung, J.S. (PIPC)
- 발행 : 2002.05.01
초록
The wavelet transform is a popular tool for studying intermittent and localized phenomena in signals. In this study the wavelet transform of cutting force signals was conducted for the detection of a tool failure in turning process. We used the Daubechies wavelet analyzing function to detect a sudden change in cutting signal level. A preliminary stepped workpiece which had intentionally a hard condition was cut by the inserted cermet tool and a tool dynamometer obtained cutting force signals. From the results of the wavelet transform, the obtained signals were divided into approximation terms and detailed terms. At tool failure, the approximation signals were suddenly increased and the detailed signals were extremely oscillated just before tool failure.
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