Abstract
By contrast with conventional methods, Acoustic Emission (AE) sensor possesses better performance for tool wear identifying. So, AE sensor is employed into cutting tool wear identification in this paper. Because of the diversity and time varying of AE, wavelet package decomposition and Support Vector Machine (SVM) are employed to process AE signal. Wavelet package is suitable for analyzing non-stationary signal, and SVM possesses excellent classification capacity for small sample. According to these features, signal processing method for identifying fault of cutting tool wear based on wavelet package and SVM was presented. The characteristics of the cutting tool wear under different conditions were extracted by wavelet package, and cutting tool wear was identified by SVM classifier. Experiment results show that the method based on wavelet package and SVM is suitable for identifying cutting tool wear, and the rate of successfully identifying is 93.3%.
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