Dynamics of Initial Penetration in Drilling: Part 2—Motion Models for Drill Skidding and Wandering With Experimental Verification

[+] Author and Article Information
Yongping Gong, Cheng Lin, Kornel F. Ehmann

Department of Mechanical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3111

J. Manuf. Sci. Eng 127(2), 289-297 (Apr 25, 2005) (9 pages) doi:10.1115/1.1852568 History: Received January 07, 2002; Revised January 15, 2004; Online April 25, 2005
Copyright © 2005 by ASME
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Drill installation errors: (a) radial offset; (b) angular error
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The components of drill skidding
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Motion of the drill axis and the locus of the cutting edge
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The effects of the cutting edge relative height error on drilling dynamics (feed rate 0.0425 mm/rev, installation run-out 0.04 mm): (a) thrust force and torque; (b) radial forces FX and FY; (c) experimental drill tip wandering and its orbit; (d) simulated drill tip wandering and its orbit; (e) the simulated and experimental drilled hole profiles




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