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Pattern recognition of tool wear and failure prediction

Pattern recognition of tool wear and failure prediction,10.1109/WCICA.2008.4592851,Jing Kang,Ni Kang,Chang-jian Feng,Hong-ying Hu

Pattern recognition of tool wear and failure prediction  
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A method of pattern recognition of tool wear based on Discrete Hidden Markov Models (DHMM) is proposed to monitor tool wear and to predict tool failure. FFT features are first extracted from the vibration signal and cutting force in cutting process, and then FFT vectors are presorted and converted into integers by SOM. Finally, these codes are introduced to DHMM for machine learning and 3 models for different tool wear stage are built up. Pattern of HMM is recognised by calculating probability. The results of tool wear recognition and failure prediction experiments show that the method is effective.
Published in 2008.
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