GLASS SHEET CUTTING BY LASER-GUIDED GYROTRON BEAM

Disclosed are systems and methods for separating a sheet of glass by directing a microwave beam and a laser beam at a sheet of glass to propagate a crack across the sheet. A laser beam spot formed on the glass sheet by the laser at least partially overlaps a microwave beam spot produced on the sheet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ABRAMOV, ANATOLI A, SUN, YAWEI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GLASS MACHINE TOOLS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	Disclosed are systems and methods for separating a sheet of glass by directing a microwave beam and a laser beam at a sheet of glass to propagate a crack across the sheet. A laser beam spot formed on the glass sheet by the laser at least partially overlaps a microwave beam spot produced on the sheet by the microwave beam and can be used to generate an increased power density in the overlap region, thereby forming a preferential direction for crack propagation. L'invention porte sur des systèmes et des méthodes de découpage d'une feuille de verre en y dirigeant un faisceau de micro-ondes et un faisceau laser afin de propager une crique à travers la feuille. Le spot du faisceau laser formée sur la feuille par le laser recouvre au moins partiellement le spot du faisceau de micro-ondes formé sur la feuille, et peut servir à produire une densité de puissance accrue dans la zone de recouvrement, créant ainsi une direction préférentielle pour la propagation de la crique.