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Monday, May 18, 2020 | History

2 edition of Effect of shot peening on surface fatigue life of carburized and hardened AISI 9310 spur gears found in the catalog.

Effect of shot peening on surface fatigue life of carburized and hardened AISI 9310 spur gears

Dennis P. Townsend

Effect of shot peening on surface fatigue life of carburized and hardened AISI 9310 spur gears

by Dennis P. Townsend

  • 34 Want to read
  • 37 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English

    Subjects:
  • Gearing.,
  • Gearing, Spur.,
  • Shot peening.,
  • Metals -- Fatigue.

  • Edition Notes

    StatementDennis P. Townsend and Erwin V. Zaretsky.
    SeriesNASA technical paper -- 2047.
    ContributionsZaretsky, Erwin V., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
    The Physical Object
    Pagination11 p. :
    Number of Pages11
    ID Numbers
    Open LibraryOL17828605M

    享vip专享文档下载特权; 赠共享文档下载特权; w优质文档免费下载; 赠百度阅读vip精品版; 立即开通Read: Gear Materials, Properties, and Manufacture (#G) Preface Gears, because of their unique contribution to the operation of so many machines and mechanical devices, have received special attention from the technical community for more than two millennia.

    Tests have indicated a drop of several points Rc hard ness for carburized steels subjected to F hr, as well as a 6 to 8% reduction in fatigue strength. When gears are proportioned. Full text of "NASA scientific and technical publications: A catalog of Special Publications, Reference Publications, Conference Publications, and Technical Papers, " See other formats.

    Erwin V. Zaretsky Glenn Research Center, Cleveland, Ohio, Rolling Bearing Life Prediction, Theory, and Application, NASA/TP The hardened surface of the part is referred to as the case, and its softer interior is known as the core. Gas carburizing is one of the most widely used surface. hardening processes. Carbon is added to the surface of low-carbon steels at temperatures ranging from to “C (I to “F).


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Effect of shot peening on surface fatigue life of carburized and hardened AISI 9310 spur gears by Dennis P. Townsend Download PDF EPUB FB2

Get this from a library. Effect of shot peening on surface fatigue life of carburized and hardened AISI spur gears.

[Dennis P Townsend; Erwin V Zaretsky; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.]. Townsend, D. P.,“Improvements in Surface Fatigue Life of Hardened Gears by High-Intensity Shot Peening,” NASA TM Townsend, D.

P., and Bamberger, E. N.,“Surface Fatigue Life of Carburized and Hardened M50NiL and AISI Spur Gears and Rolling-Contact Test Bars,” NASA TMCited by: Townsend, D. and Zaretsky, E. V., Effect of shot peening on surface fatigue life of carburized and hardened AISI spur gears.

Gear Technology,Jan/Feb, 29–37 Google ScholarCited by: Effect of shot peening on surface fatigue life of carburized and hardened AISI spur gears [microfo Surface fatigue life of high temperature gear materials [microform] / Dennis P.

Townsend; Surface fatigue life and failure characteristics of EX, CBS M, and AISI gear materials [micr. Townsend, D.

P.,“Improvements in Surface Fatigue Life of Hardened Gears by High-Intensity Shot Peening,” NASA TM Townsend, D. and Bamberger, E.

N.,“Surface Fatigue Life of Carburized and Hardened M50NiL and AISI Spur Gears Cited by: 14 Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI Spur Gears (January/February ) Gear surface fatigue endurance tests were conducted on two groups of 10 gears each of carburized and hardened AlSI spur gears manufactured from the same heat of.

The effect of different surface treatments on the fatigue behaviour at the tooth root of spur gears is investigated. Case hardening and case hardening followed by shot peening were considered for. The effect of shot peening treatment on high-cycle fatigue of high-strength cast iron with globular graphite is studied.

The fatigue curves are plotted, the microhardness and the surface roughness Author: Ann Zammit. D.P. Townsend, E.V. ZaretskyEffect of shot peening on surface fatigue life of carburized and hardened AISI spur gears NASA Technical Paper, (), pp.

Google ScholarCited by: The objective of the work reported herein was to determine the effect of two different lubricants on the surface-pitting fatigue life of consumable-electrode, vacuum-melted (CVM), carburized, and hardened AISI steel spur gears.

One lot of spur gears was manufactured from a single heat of CVM AISI material to accomplish t he objective. 69 Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI Spur Gears (January/February ) Gear surface fatigue endurance tests were conducted on two groups of 10 gears each of carburized and hardened AlSI spur gears manufactured from the same heat of.

With the mounting application of carburized or case-hardening gears and higher requirements of heavy-load, high-speed in mechanical systems such as wind turbines, helicopters, ships, etc., contact fatigue issues of gears are becoming more preponderant. Recently, significant improvements have been made on the gear manufacturing process to control subsurface-initiated failures, hence, gear Cited by: Improvement in surface fatigue life of hardened gears by high-intensity shot peening Conference Townsend, D.P.

Two groups of carburized, hardened, and ground spur gears that were manufactured from the same heat vacuum induction melted vacuum arc melted (VIM VAR) AISI steel were endurance tested for surface fatigue.

In addition, an investigation was conducted to determine the effect of shot peening of gear teeth on surface fatigue life (ref.

Gear surface fatigue endurance tests were conducted on two groups of carburized and hardened AISl steel spur gears, manufac- tured from the same heat of material. Metals -- Cold working.

See also what's at your library, or elsewhere. Broader terms: Metals; Metal-work; Cold working; Narrower terms: Bulging (Metalwork) Cold roll forming; Cold. Full text of "NASA Technical Reports Server (NTRS) Liquid rocket engine turbopump gears" See other formats.

the ISO and AGMA standard curves for carburized gears andrespectively (Fig. Crack nucleation and propagation. The tooth failure surface shows the typical shape of case-hardened AISI gear teeth (Refs.

6 and 8) with a typical, cone-cup final fracture. An example of fracture surface is shown in Figure gears tooth fatigue fig steels hardness carburizing carburized properties carbon bending pitch grinding hardening gear teeth ref gear materials manufacture hardened pinion You can write a book review and share your experiences.

Other. residual stresses in cylindrical bars ABSTRACT The residual stresses in the surface and subsurface of mechanical components A., ANDO, K., “Study on shot peening processes of coil springs D.P., ZARETSKY, V., “Effect of shot peening on the surface fatigue life of carburized and hardened AISI spur gears”, NASA.

Effect of shot peening on surface fatigue life of carburized and hardened AISI spur gears. NASA Technical Reports Server (NTRS) Townsend, D. P.; Zaretsky, E. Surface fatigue tests were conducted on two groups of AISI spur gears. • processing from: “Effect of Shot Peening on Surface Fatigue Life of Carburized and Hardened AISI Spur Gears”, The Shot Peener, Fall Fall Technical Meeting.

Design, Development and Application of New High-Performance Gear Steels. p. Effect of grain size on fatigue strength of case-hardened gears with and without removal of a mm surface layer. Coarse-grained steel, ASTM ; fine-grained steel, ASTM Source: Ref © ASM International.

All Rights Reserved. Heat Treatment of Gears: A Practical Guide for Engineers (#G)www.a.