Title

Influence of Surface Roughness on Traction and Scuffing Performance of Lubricated Contacts for Aerospace and Automotive Gearing

Publication Title

ASME/STLE 2012 International Joint Tribology Conference

Publication Date

10-7-2012

Document Type

Conference Proceeding

DOI

10.1115/IJTC2012-61212

Keywords

surface roughness, aerospace industry, traction

Disciplines

Engineering

Abstract

In this study, a two-disk test set-up was employed to investigate the impact of surface roughness on the performance of lubricated contacts. In an attempt to simulate contacts from automotive transmissions and rotorcraft gearboxes, roller specimens made of a typical automotive gear steel (AISI 5120) and a common rotorcraft gear steel (AISI 9310) were paired with 80W90 and MIL-PRF23699 lubricants, respectively. The specimens were subjected to various operating conditions to measure their traction and scuffing outcome (i) axially ground, (ii) chemically polished isotropic surfaces, and (iii) highly polished mirror-like surfaces.