When machining conditions change significantly, applying parameter-adaptive control to the cutting system by varying the table feedrate allows a constant cutting force to be maintained. Although several controller schemes have been proposed, their cutting control performance is limited especially when the cutting conditions vary significantly. This paper presents an adaptive fuzzy logic control (FLC) developed for cutting processes under various cutting conditions. The controller adopts on-line scaling factors for cases with varied cutting parameters. In addition, a reliable self-learning (SL) algorithm is proposed to achieve even better cutting performance by modifying the adaptive FLC rule base according to properly weighted performance measurements. Both simulation and experimental results show that given a sufficient number of learning cases, the adaptive SL-FLC is effective for a wide range of applications. The successful implementation of the proposed adaptive SL-FLC algorithm on an industrial heavy-duty machining center indicates that the proposed adaptive SL-FLC is feasible for use in manufacturing industries.
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November 1996
Research Papers
Fuzzy Adaptive Control of Machining Processes With a Self-Learning Algorithm
Pau-Lo Hsu,
Pau-Lo Hsu
Institute of Control Engineering, National Chiao Tung University, Hsinchu, Taiwan 300 R.O.C.
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Wei-Ru Fann
Wei-Ru Fann
Institute of Control Engineering, National Chiao Tung University, Hsinchu, Taiwan 300 R.O.C.
Search for other works by this author on:
Pau-Lo Hsu
Institute of Control Engineering, National Chiao Tung University, Hsinchu, Taiwan 300 R.O.C.
Wei-Ru Fann
Institute of Control Engineering, National Chiao Tung University, Hsinchu, Taiwan 300 R.O.C.
J. Manuf. Sci. Eng. Nov 1996, 118(4): 522-530 (9 pages)
Published Online: November 1, 1996
Article history
Received:
December 1, 1993
Revised:
May 1, 1995
Online:
January 17, 2008
Citation
Hsu, P., and Fann, W. (November 1, 1996). "Fuzzy Adaptive Control of Machining Processes With a Self-Learning Algorithm." ASME. J. Manuf. Sci. Eng. November 1996; 118(4): 522–530. https://doi.org/10.1115/1.2831062
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