Technical and Economic Advantages of Cold Forged Planetary-Bevel Gears Developed with Net Shape Teeth and Splines

Paper #:
  • 2013-36-0551

Published:
  • 2013-10-07
Citation:
Savoy, J., de Souza, M., Domingues, T., and Sigoli, P., "Technical and Economic Advantages of Cold Forged Planetary-Bevel Gears Developed with Net Shape Teeth and Splines," SAE Technical Paper 2013-36-0551, 2013, https://doi.org/10.4271/2013-36-0551.
Pages:
14
Abstract:
The search for more technical and economical competitive automotive products motivates even more the engineers to research for solutions that reduce manufacturing costs and lead-time. Bevel gears are applied extensively in the automotive industry since the invention of the transmission differential, however; few changes of the design have been done on these components in the last decades. Currently, the planetary-bevel gear blanks are hot forged with posterior cutting of the teeth and broaching of the spline, eventually, some planetary-bevel gear blanks have the teeth warm forged.The process to cold forge the teeth and the splines results as much technically benefits for the product application as manufacturing costs and lead-time reductions.This paper presents a planetary-bevel gears manufacturing concept for passenger and light commercial vehicles, where the cold forged teeth and splines present technical and economic benefits to the automotive differential transmission system.
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