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ASM Handbook

Induction Heating and Heat Treatment

Edited by
Valery Rudnev
Valery Rudnev
Inductoheat Inc.
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George E. Totten
George E. Totten
Portland State University
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ASM International
Volume
4C
ISBN electronic:
978-1-62708-167-2
Publication date:
2014
Book Chapter

Induction Hardening of Gears and Gear-Like Components

By
Valery Rudnev
Valery Rudnev
Inductoheat, Inc.
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John Storm
John Storm
Contour Hardening, Inc.
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Published:
2014
Page range:
187 - 210
Publication history
May 27, 2014

Abstract

Induction hardening is a prominent method in the gear manufacturing industry due to its ability of selectively hardening portions of a gear such as the flanks, roots, and/or tips of teeth with desired hardness, wearing resistance, and contact fatigue strength without affecting the metallurgy of the core. This article provides an overview of gear technology and materials selection. It describes different gear-hardening patterns, namely, tooth-by-tooth hardening, tip-by-tip hardening, gap-by-gap hardening, spin hardening, single-frequency gear hardening, dual-frequency gear hardening, simultaneous dual-frequency gear hardening, and through heating for surface hardening. It provides information on the different inspection methods based on the American Gear Manufacturers Association, revealing metallurgical data, hardness, and dimensions of gears. In addition, the article presents a comparative study on the mechanical properties of contour-hardened and carburized gears. It concludes by describing typical failures of induction-hardened steels and the corresponding prevention methods.

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Valery Rudnev, John Storm, 2014. "Induction Hardening of Gears and Gear-Like Components", Induction Heating and Heat Treatment, Valery Rudnev, George E. Totten

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