Search International and National Patent Collections

1. (WO2017040398) ACTIVE PEENING OF GEAR TEETH IN AN ASSEMBLED GEARBOX

Pub. No.:    WO/2017/040398    International Application No.:    PCT/US2016/049247
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Aug 30 01:59:59 CEST 2016
IPC: B23K 26/356
Applicants: SIKORSKY AIRCRAFT CORPORATION
Inventors: HANSEN, Bruce D.
Title: ACTIVE PEENING OF GEAR TEETH IN AN ASSEMBLED GEARBOX
Abstract:
A gearbox is provided having a housing, a gear having a plurality of teeth operationally configured within the housing, and a laser peening device located within the housing and configured to perform active laser peening on a predetermined surface of the gear while the gear is rotated within the housing. A method of maintaining compressive residual stresses in a gear is provided, the method including operating a gearbox to rotate a gear within the gearbox and laser peening a predetermined surface of the gear with a laser peening device located within the gearbox.