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US 12,300,961 B2Granted
Laser metal deposition systems and methods
AssigneeIntraAction Corp.
InventorsKhanh Le, John Lekavich, Bao Tran
Life of this patent
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Abstract
A laser metal deposition system includes a laser source those laser beam is provided to an acousto-optic deflector that includes an optical element having a surface with one or more steps formed thereon; a conductive layer formed on the surface with the steps; one or more crystals secured to each step; and electrodes positioned on each surface of each crystal.
Claims20
A laser metal deposition (LMD) system comprising:
- a laser source;
- a beam shaping module configured to shape the laser beam;
- a phased array acousto-optic deflector (AOD) module configured to control the direction of the laser beam by producing multiple beams at different angles and positions based on at least two distinct frequencies, wherein the AOD module comprises a plurality of transducers each mounted on a stepped surface electrically coupled in parallel and wherein dimensions of at least twosteps correlate with the at least two distinct frequencies and where the laser beam is directed using the two frequencies;
- a powder feeder configured to deliver metal powder to the workpiece;
- a deposition head that controls the laser beam and metal powder deposition on the workpiece;
- and a controller that controls the operation of the laser source, beam shaping module, phased array AOD module, powder feeder, and deposition head and directs laser beam with the at least two distinct frequencies.
3 more elements
A method for controlling laser metal deposition (LMD), comprising:
- generating a laser beam from a laser source;
- shaping the laser beam using a beam shaping module;
- controlling the direction of the laser beam using a phased array AOD module that produces multiple beams at different angles and positions based on at least two distinct frequencies, wherein the AOD module comprises a plurality of transducers each mounted on a stepped surface electrically coupled in parallel and wherein dimensions of at least twosteps correlate with the at least two distinct frequencies;
- delivering metal powder to the workpiece using a powder feeder;
- depositing the metal powder on the workpiece using a deposition head that controls the laser beam and metal powder deposition;
- and controlling the operation of the LMD system using a controller that adjusts the frequency and amplitude of the acoustic wave applied to the phased array AOD module, synchronizes the operation of the powder feeder with the deposition head, adjusts the power of the laser source, and monitors the temperature of the workpiece.
3 more elements
Dependencies are inferred from the claim text.