Method and apparatus for breaking brittle materials

Details Method and apparatus for breaking brittle materials Method and apparatus for breaking brittle materials

1995-12-15

1998-07-07

Simmons, David A.

Glass manufacturing

Processes

Glass preform treating

65111, 225 2, 2191216, B05B 1200, B05B 1204, C03C 1723

Patent

active

057762201

ABSTRACT:
A glass breaking system is provided for breaking large sheets of glass into small sheets, in which a laser beam having an elongated beam spot shape, with a largest dimension which is at least 20 mm, more preferably at least 30 mm, and most preferably at least 40 mm, is moved across a glass sheet to produce a partial crack score line. The glass sheet is then separated along the score line by applying a bending moment in the area of the partial crack.

REFERENCES:
patent: 4467168 (1984-08-01), Morgan et al.
patent: 5237150 (1993-08-01), Karube

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