High Strength, Affordable Helicopter Gears

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911W6-05-C-0017
Agency Tracking Number: A032-0616
Amount: $729,604.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: A03-078
Solicitation Number: 2003.2
Small Business Information
7261 Engle Road, Suite 105, Cleveland, OH, 44130
DUNS: 101533339
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 B. Ferguson
 (440) 234-8477
Business Contact
 B. Ferguson
Title: President
Phone: (440) 234-8477
Email: lynn.ferguson@deformationcontrol.co
Research Institution
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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