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US 11,440,139 B2Granted
Liquid enhanced laser stripping
AssigneeRaytheon Technologies Corporation
InventorsHenry H. Thayer, Dmitri Novikov, Robert J. Meehan, Bartolomeo Palmieri
Life of this patent
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Abstract
A method for stripping ceramic from a component includes applying a liquid to a ceramic coating of an outer surface of the component. The method also includes directing a plurality of laser pulses at the ceramic coating with the applied liquid in order to spall the ceramic coating from the component.
Claims11
A method for stripping a ceramic coating from a component, comprising:
- wetting a ceramic coating on an outer surface of the component with a liquid by spraying the liquid onto the ceramic coating;
- and
- using a laser generator to direct a plurality of laser pulses at the ceramic coating with the applied liquid in order to spall the ceramic coating from the component, the laser generator including a fiber laser generator,
- wherein the liquid includes an ink to absorb energy from the plurality of laser pulses such that the liquid changes from a liquid state to a gaseous state in response to receiving at least some of the plurality of laser pulses.
1 more element
A method for stripping a ceramic coating from a component, comprising:
- applying a liquid including water to a ceramic coating of an outer surface of the component;
- using a laser generator to direct a plurality of laser pulses at the ceramic coating with the applied liquid to spall the ceramic coating from the component, the laser generator including a fiber laser generator;
- and
- at least one of moving the component relative to the plurality of laser pulses or moving the plurality of laser pulses relative to the component while directing the plurality of laser pulses at the ceramic coating,
- wherein the liquid includes an ink to absorb energy from the plurality of laser pulses such that the liquid changes from a liquid state to a gaseous state in response to receiving at least some of the plurality of laser pulses.
2 more elements
Dependencies are inferred from the claim text.