Method for producing glass article, and glass article

The present invention provides a glass article that is appropriately cut out, and in which cracks are inhibited from occurring in a fracture surface. This method for producing a glass article comprises: irradiating a base material (10) with pulsed oscillation laser light along a virtual line (T) set...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SAITO, ISAO, IIDA, RYOICHI, SHIBATA, AKIHIRO, FUJIWARA, TAKUMA, ONO, TAKEAKI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MACHINE TOOLS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The present invention provides a glass article that is appropriately cut out, and in which cracks are inhibited from occurring in a fracture surface. This method for producing a glass article comprises: irradiating a base material (10) with pulsed oscillation laser light along a virtual line (T) set in the main surface (10A) of the base material (10) to form a plurality of modified portions (H) in the base material (10) along the virtual line (T); and breaking the base material (10) using the modified portions (H) along the virtual line (T) as starting points, to cut out a portion of the base material (10), thereby obtaining a glass article. The minimum pulse interval of the laser light is more than 1 [mu]s, and the pulse width of the laser light is 15-100 ps.