Pre-sintered preform braze reinforcement of pressure vessels
AssigneeROLLS-ROYCE plc
InventorJoseph Peter Henderkott
Life of this patent
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Abstract
The disclosure describes assemblies, systems, and techniques for reinforcing complex geometries of pressure vessels using a pre-sintered preform (PSP) braze material that includes a low-melt powder and a high-melt powder. An example component includes a substrate comprising at least a portion of a pressure vessel. The substrate defines a contoured exterior surface of the pressure vessel. The component includes a pre-sintered preform (PSP) reinforcement formed on the surface of the substrate by brazing, wherein the PSP reinforcement comprises a low-melt powder and a high-melt powder.
Claims11
A component comprising:
- a substrate comprising at least a portion of a pressure vessel of a gas turbine engine or an outer combustion chamber of a gas turbine engine, wherein the substrate defines a contoured exterior surface;
- and
- a pre-sintered preform (PSP) reinforcement formed over a welded seam on an undamaged surface of the substrate by brazing, wherein the PSP reinforcement comprises a low-melt powder and a high-melt powder, and wherein the PSP reinforcement defines a thickness within a range of from about 0.381 millimeters (mm) to about 25.2 mm.
An assembly comprising:
- a substrate comprising at least a portion of a pressure vessel of a gas turbine engine or an outer combustion chamber of a gas turbine engine;
- a pre-sintered preform (PSP) reinforcement formed over a welded seam on an undamaged surface of the substrate, wherein the PSP reinforcement comprises a low-melt powder and a high-melt powder, and wherein the PSP reinforcement defines a thickness within a range of from about 0.381 millimeters (mm) to about 25.2 mm;
- and
- a heat source configured to heat the PSP reinforcement to soften or melt at least one constituent metal or alloy of the low-melt powder,
- wherein, during heating, the PSP reinforcement is configured to conform to a contour of the surface of the substrate.
Dependencies are inferred from the claim text.