Tool failure and chatter are two major problems during machining. To detect and distinguish the occurrences of these two abnormal conditions, a novel parallel multi-ART2 neural network has been developed. An advantage of this network is more reliable identification of a variety of complex patterns. This is due to the sharing of multi-input feature information by its multiple ART2 subnetworks which allow for finer vigilance thresholds. Using the maximum frequency-band coherence function of two acceleration signals and the relative weighted frequency-band power ratio of an acoustic emission signal as input feature information, the network has been found to identify various tool failure and chatter states in turning operations with a total of 96.4% success rate over a wide range of cutting conditions, compared to that of 80.4% obtainable with the single-ART2 neural network.
A Comprehensive Identification of Tool Failure and Chatter Using a Parallel Multi-ART2 Neural Network
Li, X. Q., Wong, Y. S., and Nee, A. Y. C. (May 1, 1998). "A Comprehensive Identification of Tool Failure and Chatter Using a Parallel Multi-ART2 Neural Network." ASME. J. Manuf. Sci. Eng. May 1998; 120(2): 433–442. https://doi.org/10.1115/1.2830144
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