Manufacturing component using high and low melt braze
AssigneePratt & Whitney Canada Corp.
InventorsDonald B. Bell, Charles Trent Daulton, Kevin M. Tracy
Life of this patent
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Abstract
A method is provided during which a first braze material is disposed on a substrate. The first braze material has a first melting point. A second braze material is disposed on the first braze material. The second braze material has a second melting point that is less than the first melting point. The first braze material and the second braze material are heated to melt the first braze material and the second braze material and diffusion bond the first braze material and the second braze material to the substrate to provide a cladding on the substrate.
Claims18
A method, comprising:
- arranging first braze material on a substrate, the first braze material including a first melting point;
- depositing second braze material on the first braze material and sintering the second braze material to the first braze material to provide a sintered second braze material, and a second melting point of the second braze material is less than the first melting point;
- and
- forming a braze cladding on the substrate, the forming of the braze cladding comprising melting the first braze material and the sintered second braze material to diffusion bond the first braze material and the sintered second braze material to the substrate, wherein at least some of the sintered second braze material diffuses across the first braze material into the substrate during the diffusion bonding.
A method, comprising:
- disposing a first braze material on a substrate, the first braze material having a first melting point;
- depositing second braze powder on the first braze material and sintering the second braze powder to the first braze material to provide a sintered second braze material, the sintered second braze material having a second melting point that is less than the first melting point;
- and
- heating the first braze material and the sintered second braze material to melt the first braze material and the sintered second braze material and diffusion bond the first braze material and the sintered second braze material to the substrate to provide a cladding on the substrate.
A method, comprising:
- providing a substrate with a first braze material and a second braze material, the first braze material arranged on the substrate, the first braze material comprising a first ratio of a metal alloy component to a braze component, the second braze material arranged on the first braze material and sintered to the first braze material to provide a sintered second braze material, the second braze material comprising a second ratio of the metal alloy component to the braze component, and the second ratio less than the first ratio;
- and
- heating the first braze material and the sintered second braze material to melt the first braze material and the sintered second braze material and diffusion bond the first braze material and the sintered second braze material to the substrate.
Dependencies are inferred from the claim text.