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Carbonitriding and Hard Shot Peening for High-Strength Gears
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English
Abstract
A new process for manufacturing high-strength gears has been developed to meet the requirement of automobile transmission miniaturization. The points of the process are to increase the shot peening intensity and to perform optimal control of the initial (before shot peening) microstructure by heat treatment corresponding with the peening intensity in order to obtain higher residual compressive stress.
The new process, named Carbonitriding and Hard Shot Peening in Mazda, brings a much higher fatigue strength than the one obtained by the conventional carburizing and shot peening process.
Authors
Citation
Miwa, Y., Suzawa, M., Arimi, Y., Kojima, Y. et al., "Carbonitriding and Hard Shot Peening for High-Strength Gears," SAE Technical Paper 880666, 1988, https://doi.org/10.4271/880666.Also In
References
- Ichihara, M. Kakuwa: S. Journal of the Japan Institue of Metals Vol. 32 No. 8 1968
- Beck, G. Mignot, B. Lallemount: A. TRAITMENT THERMIQUE, No. 84 1974
- Nishi, M. Miura: K. Netsushori Vol. 6 No. 1 1966
- Miwa, Y. Arimi, Y. Suzawa, M. Kojima: Y. Journal of the Iron and Steel Institute of Japan No. 29 1985