Cutting Force Adapted Control Application in Micropositioned Machining
Joon Hwang* and Eui-Sik Chung**
*Department of Aeronautical & Mechanical Design Engineering, ChungJu National University
72 Daehak-Ro, Chungju, Chung-Buk 380-702, Republic of Korea
**Department of Mechanical Design Engineering, Hanbat National University
16-1 Dukmyung-Dong, Yuseong-Gu, Daejeon 305-719, Republic of Korea
In the machining process, cutting force is a physical quantity well reflecting the process itself. Measured cutting force is used to identify the tool wear, surface roughness, chip formation, chatter stability and dynamic cutter runout problems. The cutting force linearity is used to measure and control the irregular cutting phenomena and machining process. We applied force-adaptive cutting control technology to evaluate chatter and real-time compensation for dynamic cutter runout. We proposed the concept of force-adaptive cutting control in the angle domain based upon proportional-integral control to control chip-load variation in machining. The micropositioning control of cutting tool or workpiece positioning using a low-friction sliding table and piezoelectric actuator changed the chip-load variation. Our results are expected to provide invaluable information in precision machining technology.
-  S. Doi and S. Kato, “Chatter Vibration of Lathe Tool,” Trans. of the ASME, 78(5), pp. 1127-1134, 1956.
-  S. A. Tobias and W. Fishwick, “The Chatter of Lathe Tools under Orthogonal Cutting Tool Conditions,” Trans. of the ASME, 80(5), pp. 1079-1083, 1958.
-  F. Koenigsberger and J. Tlusty, “Machine Tool Structures,” Pergamon Press, Vol.1, pp. 3-145, 1970.
-  S. A. Tobias, “Machine Tool Vibration,” John Wiley & Sons, New York, pp. 146-273, 1965.
-  G. W. Long and J. R. Lemon, “Structural Dynamics in Machine Tool Chatter,” Trans. of the ASME, 87(4), pp. 455-459, 1965.
-  J. R. Lemon and P. C. Ackermann, “Application of Self-Excited Machine Tool Chatter Theory,” Trans. of the ASME, 87(4), pp. 471-475, 1965.
-  S. B. Rao, “Tool Wear Monitoring Through the Dynamics of Stable Turning,” Trans. of ASME, J. of Engineering for Industry, Vol.108, pp. 183-190, 1986.
-  J. W. Sutherland and T. S. Babin, “The Geometry of Surfaces Generated by the Bottom of End Mill,” Proc. of 16th NAMRC, pp. 202-208, 1988.
-  F. Gu, S. G. Kapoor, R. E. DeVor, and P. Bandyopadhyay, “An Approach to On-Line Cutter Runout Estimation in Face Milling,” Trans. of the NAMRAC of SME, pp. 240-247, 1991.
-  W. Kline and R. E. DeVor, “The Effect of Runout on Cutting Geometry and Forces in End Milling,” Int. Journal of MTDR, Vol.23, No.2/3, pp. 123-140, 1983.
-  T. G. Bifano and T. A. Dow, “Real Time Control of Spindle Runout,” Optical Engineering, Vol.24, No.5, pp. 888-892, 1985.
-  B. K. Fussel and K. Srinivasan, “Adaptive Control of Force in End Milling Operation-An Evaluation of Available Algorithms,” ASME Journal of Manufacturing Systems, Vol.10, No.1, pp. 8-20, 1988.
-  T. C. Tsao and K. C. Pong, “Spindle Speed Regulation and Tracking in Interrupted Cutting,” Trans. of NAMRAC of SME, pp. 235-241, 1992.
-  S. Y. Liang and S. A. Perry “In-Process Compensation for Milling Cutter Runout via Chip Load Manipulation,” Trans. of the ASME, Journal of Engineering for Industry, Vol.116, pp. 153-160, 1994.
-  J. Hwang, E. S. Chung, and S. Y. Liang, “Surface Quality Improvement through Cutter Runout Elimination in End Milling Process,” '98 Japan-USA Symposium on Flexible Automation, Otsu, Japan, Vol.3, pp. 1173-1178, 1998.
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