Inconel Blisk Repair by Laser Deposition

Award Information
Agency:
Department of Defense
Branch:
Navy
Amount:
$149,956.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
N68335-08-C-0175
Agency Tracking Number:
N081-034-0332
Solicitation Year:
2008
Solicitation Topic Code:
N08-034
Solicitation Number:
2008.1
Small Business Information
OPTOMEC DESIGN CO.
3911 Singer NE, Albuquerque, NM, 87109
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
175348549
Principal Investigator
 Richard Grylls
 LENS Product Manager
 (419) 230-3246
 rgrylls@optomec.com
Business Contact
 Jennifer Silva
Title: Contracts Administrator
Phone: (505) 761-8250
Email: jsilva@optomec.com
Research Institution
N/A
Abstract
Blisks are important in the design of modern aircraft engines. They offer attractive performance benefits, but due to their expense they require robust repair schemes, in order to avoid costly replacement during overhaul. The Laser Engineered Net Shaping (LENS) process has demonstrated repair of blisks without compromising mechanical integrity. LENS is an additive manufacturing technique, where the original material, in this case Inconel, is deposited in the repair area to achieve a full metallurgical bond, with properties often approaching those of the original material. In this work we will develop a repair for an Inconel blisk airfoil that has suffered Foreign Object Damage. In Phase I we will investigate methods to refine the grain size of LENS-deposited Inconel, and investigate localized heat-treatment. We will also look at methods to understand and control the deposition and heat-treatment processes. In the Phase I option, we will refine the processes, model them, and test the properties of the materials. In Phase II, we will develop and demonstrate the entire repair process, and show whether proceeding to qualification would result in a return on investment for the Navy.

* information listed above is at the time of submission.

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