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An Experimental Investigation of the Influence of Various Gear Steels on the Contact Fatigue Lives of Hard Ground Spur Gears

Milliren, Matthew Britt
http://rave.ohiolink.edu/etdc/view?acc_num=osu1307622355

Abstract Details

2011, Master of Science, Ohio State University, Mechanical Engineering.
In this study, the influence of different gear steels on the contact fatigue life of ground spur gear pairs was investigated. The three gear steels considered in the study were (i) AISI 8620, (ii) AISI 4620M, and (iii) AISI 5120M. Batches of gears made out of these three materials using the same finishing process at about the same roughness and hardness levels were used in these tests. Each specimen was qualified for its dimensional accuracy, hardness and surface roughness amplitudes before being tested on standard, FZG type, four-square test machines according to well-defined procedures and failure criteria. Interim inspections throughout each test were used to describe the mechanisms leading to pitting failures. The pitting data obtained for each gear material were tabulated and analyzed statistically whenever possible. The pitting fatigue life results of ground gears made of these materials were compared to each other as well as to baseline shaved gear and super-finished gear data obtained in previous related studies. The results indicated that hard grinding gears increases the pitting life of spur gears substantially in comparison to a baseline of shaved gears. Ground gears were also shown to provide improvements in the same order as super-finished gears.
Ahmet Kahraman, PhD (Advisor)
Donald Houser, PhD (Committee Member)
122 p.
Mechanical Engineering
spur gear pitting

Recommended Citations

Citations

  • Milliren, M. B. (2011). An Experimental Investigation of the Influence of Various Gear Steels on the Contact Fatigue Lives of Hard Ground Spur Gears [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1307622355

    APA Style (7th edition)

  • Milliren, Matthew. An Experimental Investigation of the Influence of Various Gear Steels on the Contact Fatigue Lives of Hard Ground Spur Gears. 2011. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1307622355.

    MLA Style (8th edition)

  • Milliren, Matthew. "An Experimental Investigation of the Influence of Various Gear Steels on the Contact Fatigue Lives of Hard Ground Spur Gears." Master's thesis, Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1307622355

    Chicago Manual of Style (17th edition)

osu1307622355
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© 2011, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.
Release 3.2.12