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TECHNICAL PAPERS

Chatter Instability in Milling Systems with Flexible Rotating Spindles—A New Theoretical Approach

[+] Author and Article Information
Jifang Tian, Stanley G. Hutton

Department of Mechanical Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada

J. Manuf. Sci. Eng 123(1), 1-9 (Jul 01, 1999) (9 pages) doi:10.1115/1.1285760 History: Received October 01, 1998; Revised July 01, 1999
Copyright © 2001 by ASME
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References

Figures

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A comparison of the instability regions from different radial cutting constants Kr(Kta=2.0E+4 (N/m))
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A comparison of the stability results from the FSN method (a) and the FSM (b) (L1:a=2 mm;L2:a=0.776 mm;Kt=1.0e+7 N/m2,cyy=czz=2e+3 Ns/m)
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A comparison of the stability results from the different models (NGE: without gyroscopic effect; WGE: with gyroscopic effect)
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A comparison of the stability results from the FSN method (with or without gyroscopic effect (WGE or NGE)) and the FLN method proposed by Altintas and Budak 11
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The modal shapes of the rotating spindle with the milling cutter: (a) first mode and (b) second mode
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Dynamic milling force model
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A dynamic milling model with a rotating spindle
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The finite-element model of the rotating spindle with the milling cutter (a) model A and (b) model B
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Regenerative instability characteristics of the first mode (Kta=2.0E+4 (N/m),Kr=0.3,θst=0°,θex=90°; the zeroth-order FSM)
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Regenerative instability characteristics of the first mode (Kta=2.0E+5 (N/m),Kr=0.3,θst=0°,θex=90°; the zeroth-order FSM)
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Regenerative instability characteristics of the second mode (Kta=2.0E+5 (N/m),Kr=0.3,θst=0°,θex=90°; the zeroth-order FSM)
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A comparison of the stability characteristics predicted by different order solutions of the FSM (Kta=1.0E+7 (N/m),Kr=0.3)

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