Efficient laser peening
AssigneeLSP Technologies, Inc.
InventorsJeff L. Dulaney, Allan H. Clauer, Steven M. Toller
Life of this patent
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Abstract
A method of laser shock peening a workpiece including the steps of laser shock peening at least one surface of the workpiece so that it extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the surface, and firing a laser beam to produce the laser shock peened surface with more than one row of laser beam spots, wherein adjacent laser beam spots and/or rows are one of touching or spaced apart from each other.
Claims34
A method of laser shock peening a workpiece, said method comprising the steps of:
- laser shock peening at least one surface of the workpiece so that said laser peened surface extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the surface;
- and
- firing a laser to produce a completed laser shock peened surface with at least one row of laser beam spots, wherein at least two adjacent laser beam spots are spaced apart from each other.
A method of laser shock peening a workpiece, said method comprising the steps of:
- laser shock peening at least one surface of the workpiece so that said laser peened surface extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the laser shock peened surface;
- and
- firing a laser to produce the laser shock peened surface with at least one row of laser beam spots, wherein at least one unprocessed area is located between adjacent spots in the finished laser peened surface.
A method of laser shock peening a workpiece, said method comprising the steps of:
- laser shock peening at least one laser shock peened surface of the workpiece;
- laser shock peening the laser shock peened surface so that it extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the laser shock peened surface;
- and
- firing a laser to produce the laser shock peened surface with a plurality of rectangular laser beam spots with the unprocessed areas between the completed said plurality of rectangular laser beam spots exhibiting residual compressive stress bridging.
A method of laser shock peening a workpiece, said method comprising the steps of:
- laser shock peening at least one laser shock peened surface of the workpiece;
- laser shock peening the laser shock peened surface so that it extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the laser shock peened surface;
- and
- firing a laser beam to produce a completed laser shock peened surface with a plurality of elliptical spots overlaid to form a mesh with interwoven non-processed areas exhibiting residual compressive bridging.
A method of laser shock peening a workpiece, said method comprising the steps of:
- laser shock peening at least one surface of the workpiece so that said laser peened surface extends over an area of the workpiece and forms a region having compressive residual stresses imparted by the laser shock peening extending into the workpiece from the surface;
- and
- firing a laser to produce a finished laser shock peened surface with one or more rows of laser beam spots, wherein adjacent laser beam spots are spaced apart from each other.
Dependencies are inferred from the claim text.