LASER DEPOSITION AND REPAIR OF REACTIVE METALS
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United States of America Patent
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app pub date -
Oct 7, 2014
filing date -
Oct 7, 2014
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Abstract
Laser processing of reactive metals. One repair process involves laser melting a titanium alloy filler material (4) in the presence of a flux composition (8) to form a titanium alloy cladding (14) bonded to a surface of a titanium-containing component (2). A laser beam (10) may be applied to a flux composition (8) covering a powdered filler material (4) such that the laser beam simultaneously melts the flux composition and the powdered filler material to form a melt pool (12) which solidifies into a resulting alloy layer (14) covered by a slag layer (16). A laser beam (20) may heat a flux composition (8) such that an amount of energy applied to the flux composition is controlled so that a molten slag blanket (24) heats and melts a powdered filler material (4) by thermal conduction in the presence of a shielding gas (26).
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