Precision Cold Forging of a P/M Preform to Produce a High Density Spur Gear

Paper #:
  • 1999-01-0294

Published:
  • 1999-03-01
Citation:
Ferguson, H. and Smith, S., "Precision Cold Forging of a P/M Preform to Produce a High Density Spur Gear," SAE Technical Paper 1999-01-0294, 1999, https://doi.org/10.4271/1999-01-0294.
Pages:
8
Abstract:
This paper describes the manufacture of a seventeen tooth spur gear by Precision Cold Forging (PCF) of a P/M preform to over 98% of theoretical density. This gear is currently being validated to replace a cut gear used in a 24hp garden tractor transmission. The method described is a bulk deformation process requiring close control of densification and deformation of the sintered preform within the fracture limit of the material.
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