A Model for Predicting the Heat Flow into the Workpiece in Dry Drilling

[+] Author and Article Information
Matthew Bono, Jun Ni

Department of Mechanical Engineering, University of Michigan, 1023 H.H. Dow Building, 2300 Hayward Street, Ann Arbor, MI 48109

J. Manuf. Sci. Eng 124(4), 773-777 (Oct 23, 2002) (5 pages) doi:10.1115/1.1511176 History: Received March 01, 2001; Revised March 01, 2002; Online October 23, 2002
Copyright © 2002 by ASME
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Axisymmetric finite element model of the workpiece
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Elementary cutting tools along the cutting edges of the drill
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Forces acting on an ECT
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Partition of heat generated on the shear plane into the workpiece and the chip
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Heat flux into the workpiece as a function of drill radius
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Nominal locations and depths of the thermocouples
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Predicted and measured workpiece temperatures for a speed of 7000 rpm and a feed of 127 microns per revolution
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Comparison of measured and predicted workpiece temperatures over the range of speeds and feeds considered




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