Fixture for high temperature joining
AssigneeROLLS-ROYCE plc
InventorsJeffrey F. Rhodes, Christopher Owen Nash, Rusty M. Garner
Life of this patent
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Abstract
A fixture may include a plurality of alloy pressure pads shaped to contact a component to be brazed or diffusion bonded, a plurality of springs, and at least one alloy support. In some examples, each spring of the plurality of springs is shaped to have a substantially constant stress throughout the spring. The plurality of springs may be between and contacting the at least one alloy support and the plurality of alloy pressure pads to exert spring forces on the plurality of alloy pressure pads. In some examples, the plurality of springs include a plurality of silicon nitride springs.
Claims18
A fixture comprising:
- a plurality of alloy pressure pads shaped to contact a component to be brazed or diffusion bonded;
- a plurality of springs, wherein each spring of the plurality of springs is shaped with a horseshoe or a capital omega symbol shape;
- and
- at least one generally annular alloy support, wherein the plurality of springs are between and contacting the at least one generally annular alloy support and the plurality of alloy pressure pads to exert spring forces on the plurality of alloy pressure pads.
A method comprising:
- assembling a component in a fixture, wherein the fixture comprises:
- a plurality of alloy pressure pads shaped to contact a component to be brazed or diffusion bonded;
- a plurality of springs, wherein each spring of the plurality of springs is shaped with a horseshoe or a capital omega symbol shape;
- and
- at least one generally annular alloy support, wherein the plurality of springs are between and contacting the at least one generally annular alloy support and the plurality of alloy pressure pads to exert spring forces on the plurality of alloy pressure pads;
- heating the component to between about 2000° F. and about 2300° F. to braze or diffusion bond a first part of the component to a second part of the component;
- and
- cooling the component.
Dependencies are inferred from the claim text.