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Energy-beam-driven rapid fabrication system

United States Patent

November 5, 2002
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An energy beam driven rapid fabrication system, in which an energy beam strikes a growth surface to form a molten puddle thereon. Feed powder is then injected into the molten puddle from a converging flow of feed powder. A portion of the feed powder becomes incorporated into the molten puddle, forcing some of the puddle contents to freeze on the growth surface, thereby adding an additional layer of material. By scanning the energy beam and the converging flow of feed powder across the growth surface, complex three-dimensional shapes can be formed, ready or nearly ready for use. Nearly any class of material can be fabricated using this system.
Keicher; David M. (Albuquerque, NM), Atwood; Clinton L. (Albuquerque, NM), Greene; Donald L. (Corrales, NM), Griffith; Michelle L. (Albuquerque, NM), Harwell; Lane D. (Albuquerque, NM), Jeantette; Francisco P. (Albuquerque, NM), Romero; Joseph A. (Albuquerque, NM), Schanwald; Lee P. (Albuquerque, NM), Schmale; David T. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
09/ 066,623
April 24, 1998
This invention was made with Government support under Contract No. DE-AC04-94DP85000 awarded by the United States Department of Energy. The Government has certain rights in the invention.