The chip formation process during metal cutting in which the cutting velocity is permitted to decrease freely is examined from an experimental standpoint. Metal cutting data are obtained from a specially constructed decelerative cutting apparatus for 6061-T9 aluminum, 65-35 brass, and TPE copper under the test conditions of constant energy input and variable initial momentum, velocity, and rake angle. The overall mechanics of chip formation are found to be essentially identical to that for the steady state, including a similarity of the dynamic velocity dependence of cutting forces to their velocity dependence in steady state tests. A complex velocity dependence is noted for 6061-T9 Aluminum. Further evidence of the constancy of the dynamic shear stress is presented. Kinetic energy and momentum are found to have no significant effects upon the chip formation process.
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August 1973
This article was originally published in
Journal of Engineering for Industry
Research Papers
Decelerative Cutting of 6061-T9 Aluminum, 65-35 Brass, and TPE Copper With Constant Impact Energy
M. H. Pleck,
M. H. Pleck
Department of General Engineering, University of Illinois, Urbana-Champaign, Ill.
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B. F. Von Turkovich
B. F. Von Turkovich
Department of Mechanical Engineering, The University of Vermont, Burlington, Vt.
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M. H. Pleck
Department of General Engineering, University of Illinois, Urbana-Champaign, Ill.
B. F. Von Turkovich
Department of Mechanical Engineering, The University of Vermont, Burlington, Vt.
J. Eng. Ind. Aug 1973, 95(3): 904-912
Published Online: August 1, 1973
Article history
Received:
April 7, 1972
Online:
July 15, 2010
Citation
Pleck, M. H., and Von Turkovich, B. F. (August 1, 1973). "Decelerative Cutting of 6061-T9 Aluminum, 65-35 Brass, and TPE Copper With Constant Impact Energy." ASME. J. Eng. Ind. August 1973; 95(3): 904–912. https://doi.org/10.1115/1.3438243
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