Circular Saw Vibration Control by Induction of Thermal Membrane Stresses

[+] Author and Article Information
C. D. Mote, G. S. Schajer

Department of Mechanical Engineering, University of California, Berkeley, Calif. 94720

S. Holo̸yen

Norwegian Institute for Wood Technology, Oslo 3 Norway

J. Eng. Ind 103(1), 81-89 (Feb 01, 1981) (9 pages) doi:10.1115/1.3184465 History: Received July 01, 1980; Online July 30, 2009


Circular saw transverse vibration and product dimensional accuracy were measured during a series of production experiments in which sawblade vibration was controlled by the deliberate introduction of thermal membrane stresses. Induction heating near the saw collar was used to control the temperature difference between two concentric annular zones on the sawblade surface. Optimal temperature conditions were predicted using the critical speed stability theory for symmetrical circular saws and these predictions were verified through production experiments. Feedback control of sawblade temperature was successfully demonstrated in production as a means of reducing blade vibration and improving dimensional accuracy.

Copyright © 1981 by ASME
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