US 11,878,343 B2
Housing and method of preparing same using a hybrid casting-additive manufacturing process
Ryan Patry, Oxford, CT (US); Kishore Kumar Tenneti, Manchester, CT (US); William Paul Fallon, Jr., Wallingford, CT (US); and Nathaniel Ferguson Dew, Oxford, CT (US)
Assigned to Lockheed Martin Corporation, Bethesda, MD (US)
Filed by LOCKHEED MARTIN CORPORATION, Bethesda, MD (US)
Filed on Dec. 7, 2021, as Appl. No. 17/544,311.
Prior Publication US 2023/0173576 A1, Jun. 8, 2023
Int. Cl. B22D 25/02 (2006.01); B22C 9/24 (2006.01); B33Y 80/00 (2015.01); B33Y 40/20 (2020.01)
CPC B22D 25/02 (2013.01) [B22C 9/24 (2013.01); B33Y 40/20 (2020.01); B33Y 80/00 (2014.12)] 13 Claims
OG exemplary drawing
 
1. A method of preparing a component of a mechanical apparatus, the method comprising:
preparing, using a mold with a geometry configured to prepare an initial structure, a cast body having the initial structure, wherein the cast body has an outer surface and defines a groove in the outer surface, wherein the groove has a surface area; and
depositing at least one feature on the cast body using a solid state additive manufacturing process without reaching a melting temperature of a material of the at least one feature, wherein:
the at least one feature is shaped to facilitate connection of the component to a separate structure;
the at least one feature is independent of any coating applied to the cast body;
at least a portion of the deposited at least one feature is coupled to the surface area of the groove;
the material of the at least one feature is configured to reduce or eliminate galvanic corrosion between the component and a separate structure on which the component is mounted.
 
7. A method of preparing a component of a mechanical apparatus, the method comprising:
preparing, using a mold with a geometry configured to prepare an initial structure, a cast body having the initial structure, wherein the cast body has an outer surface and defines a groove in the outer surface, wherein the groove has a surface area; and
depositing at least one feature on the cast body using a solid state additive manufacturing process without reaching a melting temperature of a material of the at least one feature, wherein:
the at least one feature is independent of any coating applied to the cast body;
at least a portion of the deposited at least one feature is coupled to the surface area of the groove; and
the at least one feature is sized and shaped to facilitate connection of the component to a separate structure.