High Strength, Affordable Helicopter Gears

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$729,604.00
Award Year:
2004
Program:
SBIR
Phase:
Phase II
Contract:
W911W6-05-C-0017
Award Id:
68157
Agency Tracking Number:
A032-0616
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
7261 Engle Road, Suite 105, Cleveland, OH, 44130
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
101533339
Principal Investigator:
B.Ferguson
President
(440) 234-8477
lynn.ferguson@deformationcontrol.co
Business Contact:
B.Ferguson
President
(440) 234-8477
lynn.ferguson@deformationcontrol.co
Research Institute:
n/a
Abstract
The Army's Rotorcraft Force Modernization Fleet requires a substantial increase in main gear box power density, with minimal impact on the gearbox interface. Consequently the Army has specified the goal of achieving transmission gear tooth bending fatigue improvement of 25%. This project seeks to accommodate the higher power density requirements through enhanced and innovative material processing. The Phase I effort of this project has successfully demonstrated both the improvements in residual surface compressive stress and bending fatigue life possible for the gear steel Pyrowear 53 through an innovative heat treatment called "Intensive Quenching." Comparative evaluation of Pyrowear 53 notch bar specimens demonstrated a 2x increase in residual surface compression, and at least 20% improvement in bending fatigue performance with the use of intensive quench processing as opposed to standard oil quenching. Phase II will seek to expand the characterization of the innovative heat treatment, in conjunction with superfinishing, into full test gears. The Pryowear 53 gears will be fully processed, comparing the standard to the innovative heat treatment, with single tooth bending fatigue comparisons performed, along with full metallurgical, dimensional and residual stress characterization. With this assessment, technology transfer to the US Army OEM's will be facilitated.

* information listed above is at the time of submission.

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