Method and apparatus for laser shock peening

Details Method and apparatus for laser shock peening Method and apparatus for laser shock peening

1995-08-07

1998-04-28

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

B23K 2614

Patent

active

057447810

ABSTRACT:
A method and apparatus for laser shock peening a portion of a surface on a workpiece with a laser beam directed through a curtain of water confined to the surface by a confining device that confines the water curtain on the surface essentially without any air gaps between the surface and a transparent wall of the confining device. The confining device may also incorporate a back pressure mechanism for producing a back pressure in the curtain of water over the surface such as a nozzle shaped portion of the transparent wall through which the continuous water curtain is introduced by a water nozzle. Automated mechanisms such as robotic arms may be used for positioning the confining wall a predetermined distance away from the surface portion and optionally a water supply nozzle to provide the curtain of water over the surface.

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Translation of EP416,988, Jan. 1997, PTO-97-1466.

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