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 technique includes positioning a PSP reinforcement on a surface of a substrate. The technique includes heating the PSP reinforcement to soften or melt at least one constituent metal or alloy of the low-melt powder. During heating, the PSP reinforcement is configured to conform to a contour of the surface of the substrate. The technique also includes cooling the PSP reinforcement to define a reinforced component.
Claims11
A method comprising:
- positioning a pre-sintered preform (PSP) reinforcement that defines a thickness within a range of from about 0.381 millimeters (mm) to about 25.2 mm over a welded seam on an undamaged portion of an exterior surface of a substrate, wherein the substrate comprises at least a portion of a pressure vessel of a gas turbine engine or an outer combustion chamber of a gas turbine engine, and wherein the PSP reinforcement comprises a low-melt powder and a high-melt powder;
- heating 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 exterior surface of the substrate;
- and
- cooling the PSP reinforcement to define a reinforced component.
Dependencies are inferred from the claim text.