Method and apparatus for repairing metal in an article

Details Method and apparatus for repairing metal in an article Method and apparatus for repairing metal in an article

B - Operations, Transporting

23

P

302/20, 327/1.3

B23P 6/00 (2006.01) B23P 25/00 (2006.01)

Patent

CA 1242488

METHOD AND APPARATUS FOR REPAIRING METAL IN AN ARTICLE ABSTRACT In the repair of a metallic article portion, a metal powder and laser beam are applied concurrently, the laser beam being applied in a power density range of 104 to 106 watts per square centimeter at an interaction time between the laser and the article and powder of 0.005-2 seconds to generate a repair layer. Apparatus for delivering a consistent, continuous flow of powder comprises the combination of an enclosed powder reservoir including means to introduce a gas under pressure, a mechanical means to feed powder into a conduit, a conduit vibrating means, and a fluid-cooled powder delivery nozzle.

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