Back to results
US 11,691,223 B2Granted
Liquid enhanced laser stripping
AssigneeRaytheon Technologies Corporation
InventorsHenry H. Thayer, Dmitri Novikov, Robert J. Meehan, Bartolomeo Palmieri
Life of this patent
Estimating the term…
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.
Claims5
A system for stripping ceramic from a component, the system comprising:
- at least one of a gripper or a nest configured to retain the component;
- a laser generator configured to generate a plurality of laser pulses;
- a liquid configured to be applied to a ceramic coating of an outer surface of the component;
- and
- an actuator coupled to the at least one of the gripper or nest or the laser generator and configured to at least one of move the gripper or nest relative to the laser generator or to move the laser generator relative to the gripper or nest, wherein the system is configured to:
- wet the ceramic coating of the outer surface of the component with the liquid by spraying the liquid onto the ceramic coating, and
- use the laser generator to direct the 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 one of the plurality of laser pulses.
5 more elements
Dependencies are inferred from the claim text.