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US 12,392,244 B2Granted
Repair process using plasma etching
AssigneeRtx Corporation
InventorsXiaomei Fang, Jakob Reed
Life of this patent
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Abstract
A repair process includes providing a gas turbine engine article that has an elastomeric coating that has an eroded region, plasma etching the elastomeric coating in the eroded region, and applying an elastomeric repair coating on the eroded region.
Claims8
A repair process comprising:
- providing a gas turbine engine article that includes an aluminum alloy substrate and an elastomeric coating disposed on the aluminum alloy substrate, and the elastomeric coating has an eroded region;
- plasma etching the elastomeric coating in the eroded region, the plasma etching partially removing a surface portion of the elastomeric coating to create a new bonding surface on the elastomeric coating without removal of the elastomeric coating down to the aluminum alloy substrate;
- and
- applying an elastomeric repair coating on the new bonding surface.
1 more element
Dependencies are inferred from the claim text.