Enhanced Fatigue Life of Hypoid Gears with Precision Shot Peening 962162
The effects of different shot peening parameters on the fatigue life of rear axle hypoid pinion gears were evaluated. Shot hardness, shot size, intensity, shot velocity and prior heat treatment were studied and compared to current production. Metallurgical analysis of the carburized SAE 4320 gears along with residual stress gradient analysis at tooth root fillets were performed. The results showed that significant fatigue life enhancement can be achieved by precision shot peening (directed, air nozzle type) and proper determination and tight tolerance of shot peening process parameters and heat treatment.
Citation: Coryell, J. and Garibay, R., "Enhanced Fatigue Life of Hypoid Gears with Precision Shot Peening," SAE Technical Paper 962162, 1996, https://doi.org/10.4271/962162. Download Citation
Author(s):
James W. Coryell, Robert P. Garibay
Pages: 7
Event:
1996 SAE International Truck and Bus Meeting and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Light Trucks: Drivetrains and Powertrains-SP-1200, SAE 1996 Transactions - Journal of Passenger Cars-V105-6
Related Topics:
Heat treatment
Peening
Gears
Fatigue
Production
Metallurgy
Nozzles
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