Laser shock peening apparatus with a diffractive optic element

Details Laser shock peening apparatus with a diffractive optic element Laser shock peening apparatus with a diffractive optic element

1997-09-11

1999-08-10

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

21912173, B23K 2600

Patent

active

059354640

ABSTRACT:
A laser peening apparatus, including a laser generator to generate a laser beam having a first cross-sectional shape; and a diffractive optic element. The diffractive optic element changes the laser beam to a second cross-sectional shape. The apparatus also includes demagnifying and magnifying lenses. The diffractive optic element may create a second cross-sectional shape such as rectangular, hexagonal, or even split the laser beam into multiple beams. The diffractive optic element may also create a second cross-sectional shape of the laser beam varying in intensity thereacross or varying in energy distribution.

REFERENCES:
patent: 5103073 (1992-04-01), Danilov et al.
patent: 5672285 (1997-09-01), Kondo et al.
patent: 5786560 (1998-07-01), Tatah et al.

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