Weld Repair of Titanium Alloys for Turbine Engine Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-08-C-5203
Agency Tracking Number: F071-135-2636
Amount: $749,728.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: AF071-135
Solicitation Number: 2007.1
Small Business Information
2500 Louisiana NE, Suite 300, Albuquerque, NM, 87110
DUNS: 959735713
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mark Cola
 Director of Operations
 (505) 660-3052
 cola@beyond6-sigma.com
Business Contact
 Erin Mathie
Title: Contracts Manager
Phone: (505) 872-3146
Email: emathie@tmcservices.com
Research Institution
N/A
Abstract
Integrally Bladed Rotors – IBRs – are an important part of current and future military aeroengines. The use of IBR allows lower weight rotors with decreased drag and improved compressor efficiency. Repair of these parts however is currently problematic. The overarching objective of the Phase II work is to build upon the successful proof of principle conducted in Phase I and to build, test and validate a prototype for Titanium Gas Metal Arc Welding (GMAW) for IBR weld repair. This project will build upon the successful Phase I work by first developing welding parameters for smaller diameter wire enabling even finer weld geometry and hence repairs on smaller areas. Then, a novel monitoring and control methodology known as In – Process quality Assurance – IPQA – will be implemented to sense and control vital aspects of the welding process not possible with current approaches. Lastly, this advanced monitoring and control will be integrated with commercial power supplies to provide a prototype solution that can be transitioned to production in Phase III. Demonstration weld repairs will be made on prototypic mockup parts and metallurgical and mechanical properties will be evaluated to ensure suitability of this procedure for IBRs.

* Information listed above is at the time of submission. *

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