IJAT Vol.8 No.6 pp. 827-836
doi: 10.20965/ijat.2014.p0827


Sensorless Tool Stiffness Monitoring in Buffing

Ryo Koike*, Ryo Kumakura*, Takashi Arai**,
Eishiro Uchishiba**, Makoto Murakami**, Takahisa Sagara**,
and Yasuhiro Kakinuma*

*Department of System Design Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan

**Yokohama Plant, Nikon Corporation, 471 Nagaodai-cho, Sakae-ku, Yokohama, Kanagawa 244-8533, Japan

August 22, 2014
October 19, 2014
November 5, 2014
buffing, force estimation, process monitoring, contact stiffness, force control
In current practice, the buffing process required to finish the surface of mechanical parts is performed manually by a technical expert as it requires a delicate adjustment of the buffing force. The automation of this process is desirable in an effort to shorten the process time and reduce labor cost. To automate the buffing process, a beneficial process monitoring technique that supervises the buffing tool conditions in real time must be developed. From a practical perspective, an observer technique that does not require additional sensors would be most suitable for monitoring the tool operating condition. The authors propose a technique that estimates the buffing tool stiffness based on a disturbance observer. The validity of the proposed method as a buffing tool condition monitoring technique is verified through numerical simulations and experiments.
Cite this article as:
R. Koike, R. Kumakura, T. Arai, E. Uchishiba, M. Murakami, T. Sagara, and Y. Kakinuma, “Sensorless Tool Stiffness Monitoring in Buffing,” Int. J. Automation Technol., Vol.8 No.6, pp. 827-836, 2014.
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