Low torque loss gears: austempered ductile iron versus carburized steel


Autoria(s): Magalhães, Luís; Martins, R.; Seabra, Jorge; Gonçalves, R.
Data(s)

17/03/2014

17/03/2014

2010

Resumo

Low-loss power transmission gears operate at lower temperature than conventional ones because their teeth geometry is optimized to reduce friction. The main objective of this work is to compare the operating stabilization temperature and efficiency of low-loss austempered ductile iron (ADI) and carburized steel gears. Three different low-loss tooth geometries were adopted (types 311, 411 and 611, all produced using standard 20° pressure angle tools) and corresponding steel and ADI gears were tested in a FZG machine. The results obtained showed that low-loss geometries had a significant influence on power loss, gears 611 generating lower power loss than gears 311. At low speeds (500 and 1000 rpm) and high torque ADI gears generated lower power loss than steel gears. However, at high speed and high torque (high input power and high stabilization temperature) steel gears had better efficiency.

Identificador

DOI: 10.1177/1350650111415483

1350-6501

2041-305X

http://hdl.handle.net/10400.22/4210

Idioma(s)

eng

Publicador

SAGE

Relação

Journal of Engineering Tribology; Vol. 225, Issue 12

http://pij.sagepub.com/content/225/12/1209

Direitos

closedAccess

Tipo

article