Laser peening hollow core gas turbine engine blades

Details Laser peening hollow core gas turbine engine blades Laser peening hollow core gas turbine engine blades

1997-12-30

2000-06-20

Jones, Deborah

Electric heating

Metal heating

By arc

148525, 148565, 148903, 21912171, B23K 2600

Patent

active

060780223

ABSTRACT:
A hollow workpiece includes an outside surface through which a port opens to the hollow interior, and a laser peened area on the surface of the workpiece. The laser peened area is created on the surface while the hollow interior is at least partially filled with a substance other than air. A method of laser peening a hollow core gas turbine engine blade includes the steps of providing a hollow core gas turbine engine blade, filling the hollow core with a substance other than air, and then, laser peening the hollow core gas turbine engine blade.

REFERENCES:
patent: 4401477 (1983-08-01), Clauer et al.
patent: 5131957 (1992-07-01), Epstein et al.

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