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Direct laser additive fabrication system with image feedback control

United States Patent

October 1, 2002
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A closed-loop, feedback-controlled direct laser fabrication system is disclosed. The feedback refers to the actual growth conditions obtained by real-time analysis of thermal radiation images. The resulting system can fabricate components with severalfold improvement in dimensional tolerances and surface finish.
Griffith; Michelle L. (Albuquerque, NM), Hofmeister; William H. (Nashville, TN), Knorovsky; Gerald A. (Albuquerque, NM), MacCallum; Danny O. (Edgewood, NM), Schlienger; M. Eric (Albuquerque, NM), Smugeresky; John E. (Pleasanton, CA)
Sandia Corporation (Albuquerque, NM)
09/ 394,184
September 10, 1999
This invention was made with Government support under Contract DE-AC04-94DP85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.