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US 11,440,146 B1Granted
Mini-core surface bonding
AssigneeRaytheon Technologies Corporation
InventorsJohn R. Paulus, Jimmy Johnson
Life of this patent
Estimating the term…
Abstract
A method of bonding a mini-core to a surface of a core is provided. The method includes providing the mini-core with an attachment device that includes a protrusion of a surface of the mini-core, dipping the protrusion into a supply of paste to transfer a fixed quantity of paste to the protrusion and affixing the protrusion to the surface of the core with the fixed amount of paste interposed between the surface and the protrusion.
Claims12
A method of bonding a mini-core to a surface of a core, the method comprising:
- providing the mini-core with an attachment device comprising a protrusion of a surface of the mini-core;
- wherein the core is a ceramic core for forming an internal cavity of a turbine blade or vane and the surface is a pressure surface of the core;
- dipping the protrusion into a supply of paste to transfer a fixed quantity of paste to the protrusion;
- affixing the protrusion to the surface of the core with the fixed amount of paste interposed between the surface and the protrusion;
- and
- wherein the affixing comprises pressing the protrusion onto the surface to drive the paste toward forming a fillet at a base of the protrusion.
3 more elements
A method of bonding multiple mini-cores to a surface of a core, the method comprising:
- providing each of the mini-cores with one or more posts, studs or bumpers;
- simultaneously dipping each of the one or more posts, studs or bumpers of one of the mini-cores into a supply of paste to transfer a fixed quantity of paste to each of the one or more posts, studs or bumpers;
- wherein the core is a ceramic core for forming an internal cavity of a turbine blade or vane and the surface is a pressure surface of the core;
- simultaneously affixing the one or more posts, studs or bumpers to the surface with the fixed amount of paste interposed between the surface and each of the one or more posts, studs or bumpers;
- and
- repeating the simultaneously dipping and affixing for each of the mini-cores to form a linear array of mini-cores on the surface.
3 more elements
Dependencies are inferred from the claim text.