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Shot Peening

Home » Topics » Manufacturing » Processes » Shot Peening
  • Igs featured
    July 15, 2022
    By Ruben Carranza Fernandez

    IGS to Increase Wind Gearbox Torque Density

    To increase cost efficiency in wind turbines, the wind industry has seen a significant rise in power density and an increase in the overall size of geared components. Current designs for multimegawatt turbines demand levelized cost of energy (LCOE) reduction, and the gearbox is a key part of this process. Since fatigue failures nearly always occur at or near the surface, where the stresses are greatest, the surface condition strongly affects the gear life. Consequently, an improved surface condition effectively avoids major redesign or increased material cost due to an increase in part size. Additional finishing methods such as shot peening (SP) and superfinishing (SF) significantly increase the gear load capacity, but these effects have not yet been adequately considered in the current ISO 6336 standard or in any other gear standards. The combination of SP followed by SF will be described here as an “improved gear surface” (IGS).

  • Tech1
    April 25, 2022
    By Daniel Fuchs

    Tooth Root Bending Strength of Shot-Peened Gears Made of High-Purity Steels up to the VHCF Range

    Standardized methods, like AGMA 2001-D04 or ISO 6336 for the calculation of the load carrying capacities of gears are intentionally conservative to ensure broad applicability in industrial practice. However, new applications and higher requirements often demand more detailed design calculations nowadays; for example: long operating lives in wind power gearboxes or fewer gear stages and higher speeds in e-mobility applications result in higher load cycles per tooth in a gearbox.

  • March 1, 2021

    Effects of Different Shot Peening Treatments in Combination with a Superfinishing Process on the Surface Durability of Case-Hardened Gears

    How the increasing demands on power transmission and reduction in mass of modern gearboxes lead to gear designs that are close to their load-carrying capacity limits.
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  • September 1, 2018

    Influence of Different Manufacturing Processes on Properties of Surface-Densified PM Gears

  • August 1, 2018

    Influences of the Residual Stress Condition on the Load-Carrying Capacity of Case-Hardened Gears

  • August 1, 2014
    By Robert Errichello

    The Pros and Cons of Fully Ground Root Fillets

  • June 1, 2011

    Technical Calendar

  • March 1, 2010

    Shot Peening Up Close and Personal

  • November 1, 2005

    Utilization of Powder Metal and Shot Peening Residual Stress to Maximize Cost and Performance Benefit of Highly Loaded Gearing

  • January 1, 1998

    Influence of Gear Design on Gearbox Radiated Noise

  • March 1, 1997
    By Michael Goldstein

    Spreading The Word

  • January 1, 1992

    Optimum Shot Peening Specification - II

  • November 1, 1991

    Optimum Shot Peening Specification - I

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Blog Posts

  • May 24, 2019
    By Charles D. Schultz

    Finding the Limits

  • May 31, 2018
    By Charles D. Schultz

    Parsing the Fine Print

  • May 24, 2018
    By Charles D. Schultz

    The Right Stuff

  • May 26, 2015
    By Charles D. Schultz

    Short Lived Gearbox Designs

Read More

Authors

  • Charles schultz
    Charles D. Schultz
  • Michael goldstein
    Michael Goldstein
  • Robert errichello
    Robert Errichello
  • Stahl
    Dr.-Ing. Karsten Stahl
  • Thomas tobie
    Dr.-Ing. Thomas Tobie
  • Daniel fuchs
    Daniel Fuchs
More Authors
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