Laser peening process and apparatus using a liquid erosion-resistant opaque overlay coating
The invention relates to a method and apparatus for improving properties of a solid material by providing laser shock processing.
Posted: September 11, 2017
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The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves there through. Laser shock processing is used to provide the shockwaves. The method includes applying a liquid energy-absorbing overlay, which is resistant to erosion and dissolution by the transparent water overlay and which is resistant to drying to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. Advantageously, at least a portion of the unspent energy-absorbing overlay can be reused in situ at a further laser treatment location and/or recovered for later use.
Inventors: Tenaglia; Richard D. (Columbus, OH), Dulaney; Jeff L. (Dublin, OH), Lahrman; David F. (Powell, OH)
Assignee: LSP Technologies, Inc. (Dublin,
OH)
Appl. No.: 12/013,024
Filed: 11-Jan-08
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