Method for generating optically perceptible laser-induced cracks in brittle material

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WEISSER JUERGEN, ULLMANN RONNY, ACKER STEFAN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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.