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Induction hardening of geared parts used in aeronautic and aerospace industry is an important technology because of its one-piece flow, repeatability, energy efficiency, and tighter control of surface distortion than conventional carburizing. This article describes the requirements and characteristics of induction hardening of transmission parts, such as bearings, shafts, and different types of gears, including bevel gears, spur wheel gears, helical gears, and splines. It provides information on process monitoring and the economic aspects of induction hardening.

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Christian Krause, Fabio Biasutti, Induction Hardening for the Aeronautic and Aerospace Industry, Induction Heating and Heat Treatment, Vol 4C, ASM Handbook, Edited By Valery Rudnev, George E. Totten, ASM International, 2014, p 222–227,

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