Electric heating – Metal heating – By arc
Patent
1981-04-01
1984-08-21
Albritton, C. L.
Electric heating
Metal heating
By arc
65105, 219121LN, B23K 2700
Patent
active
044671687
ABSTRACT:
A method of cutting glass with a laser. The glass is superposed a suitable support and a laser beam is directed onto the glass. The laser beam is focused to a point disposed at or about the surface of the glass. The focused laser beam vaporizes a first thickness of glass, less than the entire thickness, and simultaneously heats the remaining thickness above the annealing temperature of the glass. A jet of gas incident upon the laser focal point removes the heated and vaporized glass proximate the focal point to create a hole through the glass. By effecting movement between the glass and the laser and gas jet at a predetermined rate, the glass is cut. Also disclosed is an article including a unitary first sheet of glass having at least one complimental opening of predetermined configuration that does not extend to the edge of the glass and is cut by a laser. One or more complimentary glass inserts coplanar with the first glass are disposed within the opening of the first glass, defining a groove therebetween. A securing means is disposed in the groove to secure the complimentary pieces of glass in fixed edge to edge relationship.
REFERENCES:
patent: 3930825 (1976-01-01), Chui
Hinkens Dale R.
Morgan George M.
Albritton C. L.
Creative Glassworks International
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