CHAMFERING METHOD AND DEVICE BY MEANS OF LASER OF FRAGILE MATERIAL

PROBLEM TO BE SOLVED: To provide a working method and a device for the working method, which permits improvement, stability and reproducibility of a working quality, and the shortening of working time at the same time, in chamfering working by means of laser for preventing cracking, chipping, fissur...

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Bibliographische Detailangaben
Hauptverfasser:	UEMORI NOBUTAKA, NAKADA SATOKI
Format:	Patent
Sprache:	eng ; jpn
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 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:	PROBLEM TO BE SOLVED: To provide a working method and a device for the working method, which permits improvement, stability and reproducibility of a working quality, and the shortening of working time at the same time, in chamfering working by means of laser for preventing cracking, chipping, fissures or the like due to a shape of a working object of fragile material, in particular, due to a shape of an edge part.SOLUTION: A condensing spot of a laser beam is relatively scanned along an edge line of a working object. An irradiation direction thereof is a direction toward an original point of the coordinates, comprising x-axis set as a scanning direction of the working object, y-axis when setting a surface to be irradiated on the working object as xy-plane, and z-axis set as a normal direction of the xy-plane, from a point P(r,θ,φ) on a three-dimensional polar coordinates, and is in the range of 0