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TECHNICAL PAPERS

A Study of Burr Formation Processes Using the Finite Element Method: Part II—The Influences of Exit Angle, Rake Angle, and Backup Material on Burr Formation Processes

[+] Author and Article Information
I. W. Park

Integrated Surgical Systems, Inc., 1850 Research Park Dr., Davis, CA 95616

D. A. Dornfeld

Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94270-1740

J. Eng. Mater. Technol 122(2), 229-237 (Dec 31, 1999) (9 pages) doi:10.1115/1.482792 History: Received June 26, 1998; Revised December 31, 1999
Copyright © 2000 by ASME
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References

Figures

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Finite element models of 60, 80, 90, 100, and 120 degree exit angles
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Finite element models of 5 and 20 degree rake angles
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Finite element models of backup materials
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Equivalent stress contour of 60 degree exit angle
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Shear stress contour of 60 degree exit angle
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Edge breakout of 60 degree exit angle
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Equivalent stress contour of 80 degree exit angle
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Shear stress contour of 80 degree exit angle
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Edge breakout of 80 degree exit angle
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Equivalent stress contour of 90 degree exit angle
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Shear stress contour of 90 degree exit angle
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Formation of negative deformation zone in burr formation
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Shear stress contours of 100 and 120 degree exit angle
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Equivalent stress contours of 100 and 120 degree exit angle
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Final burr configuration of 100 and 120 degree exit angles
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Pekelharing’s tool life experiment results in orthogonal cutting, from 5
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Development of negative shear stress closest to the tool edge
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Location of burr initiation of 20 degree rake angle
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Location of burr initiation of 5 degree rake angle
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Equivalent stress contour with 10 mm backup material
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Normal stress contour in y-direction with 5 mm backup material
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Influence of backup material partially supporting workpiece

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