Electric heating – Metal heating – By arc
Reexamination Certificate
2007-09-11
2007-09-11
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
Reexamination Certificate
active
10654369
ABSTRACT:
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.
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Dulaney Jeff L.
Lahrman David F.
Tenaglia Richard D.
Evans Geoffrey S.
Knuth Randall J.
LSP Technologies Inc.
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