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Case Depth

Home » Topics » Heat Treating » Case Depth
  • January 1, 2020

    Optimum Carburized and Hardened Case Depth

    The optimum carburized and hardened case depth for each gear failure mode is different and must be defined at different locations on the gear tooth. Current gear rating standards do not fully explain the different failure modes and do not clearly define the different locations that must be considered.
  • March 1, 2016
    By March Li

    Practical Approach to Determining Effective Case Depth of Gas Carburizing

    Effective case depth is an important factor and goal in gas carburizing, involving complicated procedures in the furnace and requiring precise control of many thermal parameters. Based upon diffusion theory and years of carburizing experience, this paper calculates the effective case depth governed by carburizing temperature, time, carbon content of steel, and carbon potential of atmosphere. In light of this analysis, carburizing factors at various temperatures and carbon potentials for steels with different carbon content were calculated to determine the necessary carburizing cycle time. This methodology provides simple (without computer simulation) and practical guidance of optimized gas carburizing and has been applied to plant production. It shows that measured, effective case depth of gear parts covering most of the industrial application range (0.020 inch to over 0.250 inch) was in good agreement with the calculation.
  • June 1, 2007

    Wind Turbine Market Leads Hansen Transmissions to India

    When Belgium-based Hansen Transmissions was under the ownership of Invensys plc in the late 1990s, the parent company was dropping not-so-subtle hints that the industrial gearbox manufacturer was not part of its long-term plans. Yet Hansen’s CEO Ivan Brems never dreamed that, less than a decade later, he would be working for an Indian company.
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  • July 1, 2005

    Systematic Investigations on the Influence of Case Depth on the Pitting and Bending Strength of Case Carburized Gears

  • May 1, 2002

    Industry News

  • November 1, 1999

    Coordinate Measuring Machines and the Gear Industry

  • July 1, 1999

    Revolutions

  • March 1, 1999

    Metallurgical Aspects to be Considered in Gear and Shaft Design

  • July 1, 1993

    Gear Tip Chamfer and Gear Noise; Surface Measurement of Spiral Bevel Gear Teeth

  • July 1, 1992

    Comparing Surface Failure Modes in Bearings and Gears: Appearances vs. Mechanisms

  • November 1, 1986

    Curvic Coupling Design

  • May 1, 1986

    Identification of Gear Noise with Single Flank Composite Measurement

  • October 1, 1984

    Endurance Limit for Contact Stress in Gears

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Blog Posts

  • February 26, 2020
    By Charles D. Schultz

    After Further Review

  • August 29, 2019
    By Charles D. Schultz

    Appreciating the Gory Details

  • August 13, 2019
    By Charles D. Schultz

    Gear Origins: Roman Cisek

  • November 15, 2018
    By Dwight Smith

    Beautiful on the Inside

  • October 4, 2018
    By Charles D. Schultz

    Repairing Gears

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Authors

  • Charles schultz
    Charles D. Schultz
  • Dwight smith
    Dwight Smith
  • March li
    March Li
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