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TECHNICAL PAPERS

On the Characteristics and Mechanism of Rolling Instability and Chatter

[+] Author and Article Information
Y.-J. Lin, C. S. Suh, R. Langari, S. T. Noah

Mechanical Engineering Department, Texas A&M University, College Station, TX 77843-3123

J. Manuf. Sci. Eng 125(4), 778-786 (Nov 11, 2003) (9 pages) doi:10.1115/1.1617981 History: Received May 01, 2002; Revised June 01, 2003; Online November 11, 2003
Copyright © 2003 by ASME
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References

Roberts,  W. L., 1978, “Four-H Mill-Stand Chatter of the Fifth-Octave Mode,” Iron and Steel Engineer, 55, October ,pp. 41–47.
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Yun,  I.-S., Ehmann,  K. F., and Wilson,  W. R. D., 1998, “Chatter in the Strip Rolling Process, Part 3: Chatter Model,” ASME J. Manuf. Sci. Eng., 120, pp. 343–48.
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Figures

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4-H rolling mill stand and FBD of the upper work roll
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Roll bite geometry during rolling
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Vertical slice in the roll bite
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Roll gap transient response (m)
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System frequency response
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Roll gap transient response (m)
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System frequency response
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System Time response (Top) and its continuous wavelet transform (Bottom)
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Roll gap transient response (m)
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Roll gap transient response and exponential decay at u1=12.7 m/s
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Roll gap transient response and exponential decay at u1=25.4 m/s
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Roll gap transient response (m)
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Roll gap beating response (m)
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Square wave input and roll gap response (m)
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FFT of the system’s response
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Roll gap transient response (m)
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Forces on the upper work roll

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