Method for generating optically perceptible laser-induced...

Details Method for generating optically perceptible laser-induced... Method for generating optically perceptible laser-induced...

2007-07-13

2010-10-12

Evans, Geoffrey S (Department: 3742)

Electric heating

Metal heating

By arc

C065S112000

Reexamination Certificate

active

07812281

ABSTRACT:
The invention is directed to a method for generating optically perceptible laser-induced cracks in brittle material, wherein a laser beam, followed by a coolant jet, is guided relative to the surface of the brittle material in order to advance a crack trail into the material starting from an initial crack, and wherein a marking agent which penetrates into the crack during the formation of the crack so as to make the latter visible is mixed with the coolant.

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Machine translation of Japan Patent No. 8-219,963, Mar. 2010.
Machine translation of Japan Patent No. 2000-211,298, Mar. 2010.

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