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The Effect of Density on the Bending Fatigue of Powdered Metal Gears

[+] Author Affiliations
David A. Alven, Peter G. Imbrogno

Keystone Powdered Metal Co., St. Marys, PA

Paper No. DETC2007-34127, pp. 879-885; 7 pages
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 7: 10th International Power Transmission and Gearing Conference
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4808-6 | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME


The bending fatigue properties of powder metal (P/M) gears as a function of density were investigated. SAE-AISI 4600 based steel gears were manufactured using various powdered metal processes. The processes used were press and sinter, double press and double sinter, surface densify, and powder forge (P/F). The resulting gears were then subjected to single tooth bending fatigue testing and compared with 4600 based wrought gears. It was found that the density of the P/M part had a significant influence on the bending fatigue properties. When compared to the wrought material, a P/M gear of equivalent density was found to have similar bending fatigue properties.

Copyright © 2007 by ASME



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