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US 9,315,904 B2Granted
Material deposition using powder and foil
AssigneeSiemens Energy, Inc.
InventorsGerald J. Bruck, Ahmed Kamel
Life of this patent
Estimating the term…
Abstract
The loss of aluminum content during the laser (20) deposition of superalloy powders (16) is accommodated by melting pure aluminum foil (14) with the superalloy powder to increase a concentration of aluminum in the melt pool (24) so that the resulting layer of deposited material (26) has a desired elemental composition Foils, screens or strips of any material may be melted with powders to achieve any desired cladding composition, including a graded composition across a thickness of a clad layer (50).
Claims19
A method of material deposition comprising:
- selecting a powdered metal;
- selecting a metal foil comprising a composition and thickness that compensates for a processing loss of an elemental constituent of the powdered metal during deposition thereof by the method;
- disposing both the powdered metal and the metal foil over a surface of a substrate;
- melting the powdered metal and metal foil with an energy beam to form a melt pool;
- and
- allowing the melt pool to solidify to form a layer of the deposited material on the substrate surface.
3 more elements
A method of material deposition comprising:
- selecting a powder composed of a superalloy;
- selecting a metal preform comprising a composition and thickness that compensates for a processing loss of an elemental constituent of the superalloy powder during deposition thereof by the method;
- disposing the superalloy powder and the metal preform onto a substrate;
- melting the superalloy powder and the metal preform with an energy beam to form a melt pool;
- allowing the melt pool to solidify to form a first layer of deposited material on the substrate;
- and
- repeating the steps of disposing, melting and allowing to solidify in order to form a plurality of layers of deposited material on the substrate to a desired thickness.
4 more elements
Dependencies are inferred from the claim text.