This is one of four papers presented simultaneously on the general subject of chatter. This work is concerned with finding a representation of the dynamic metal-cutting process which is suitable for use in a linear closed-loop theory of stability of the system composed of the machine tool structure, the cutting process, and their means of combining. Measuring techniques for experimentally determining this behavior are discussed and some problems in the dynamic measurement of forces are explored. It is found that it is not at all sufficient to simply build a dynamometer whose lowest natural frequency is well beyond the range of interest. It is also shown that dynamic cross sensitivity can far exceed static cross sensitivity so that a more general technique for data correction developed in the present work must be used to calibrate dynamic force data. Results obtained to date with an oscillating tool and a flat uncut surface show that some phase, increasing with frequency, is always present between the dynamic cutting forces and the oscillatory uncut chip thickness. This phase is different for the two components of the resultant cutting force. It is felt that two mechanisms, both associated with the tool clearance flank, can explain most of the dynamic cutting effects found in testing.
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November 1965
This article was originally published in
Journal of Engineering for Industry
Research Papers
Cutting Dynamics in Machine Tool Chatter: Contribution to Machine-Tool Chatter Research—3
R. L. Kegg
R. L. Kegg
Product Development Department, The Cincinnati Milling Machine Company, Cincinnati, Ohio
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R. L. Kegg
Product Development Department, The Cincinnati Milling Machine Company, Cincinnati, Ohio
J. Eng. Ind. Nov 1965, 87(4): 464-470
Published Online: November 1, 1965
Article history
Received:
August 11, 1964
Online:
December 8, 2011
Citation
Kegg, R. L. (November 1, 1965). "Cutting Dynamics in Machine Tool Chatter: Contribution to Machine-Tool Chatter Research—3." ASME. J. Eng. Ind. November 1965; 87(4): 464–470. https://doi.org/10.1115/1.3670863
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