Aluminum and Aluminum-Matrix-Composite Manufacture by Laser Deposition

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NAS8-01143
Agency Tracking Number: 013328
Amount: $69,973.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
3911 Singer NE, Albuquerque, NM, 87109
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Grylls
 Principal Investigator
 (505) 761-8250
Business Contact
 David Keicher
Title: Chief Technical Officer
Phone: (505) 761-8250
Research Institution
The Laser-Engineered-Net-Shaping (LENSTM) process uses a laser to create a molten pool on the surface of a substrate in which metal powder is then injected to increase the volume of the pool. The laser spot is selectively scanned to additively build up the required material in the desired shape. In a sequential fashion, each cross-sectional layer of the object is taken from a 3-D CAD file and deposited until an entire object is created. Many materials have been deposited using this technique, including steels and titanium alloys. Metal-matrix composites (MMCs) have been produced by the simple method of using coated particulate composite particles. The deposition of aluminum and its alloys is challenging because aluminum absorbs little incident laser energy. The ability to produce these materials may significantly impact NASA?s ability to fabricate or repair various components for advanced rocket engines. This proposal aims to develop the methodology to deposit high aluminum alloys during Phase I, and also show the feasibility of producing aluminum MMCs. Phase 2 will further optimize the aluminum alloy deposition and develop the process for aluminum MMC deposition, and demonstrate component manufacture with suitable testing.

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

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