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Swept Arc Length Measure of Abrasive Wear

[+] Author Affiliations
Nessa Johnson, Michael Hennessey, John Abraham

University of Saint Thomas, Saint Paul, MN

Paper No. IMECE2010-37700, pp. 85-94; 10 pages
doi:10.1115/IMECE2010-37700
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 3: Design and Manufacturing, Parts A and B
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4427-4
  • Copyright © 2010 by ASME

abstract

A geometric theory is presented to enhance understanding of part wear and lay patterns generated during surface grinding, such as when a part is fed through a machine with a rotating circular abrasive disk. This theory uses the integrated relative speed between the part and the abrasive wheel, the swept arc length, as a wear measure. A dynamic simulation model was created in SIMULINK™ to evaluate the swept arc length computation at a single point, and a MATLAB™ script was used to provide initial conditions, spatially loop through the entire part surface, and evaluate the resultant part wear. Three common machine configurations have been dynamically modeled and evaluated using the swept arc length theory. Additionally, simulation results have been validated through comparison with industry professionals using the swept arc length as a wear measure.

Copyright © 2010 by ASME
Topics: Wear

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