Method and apparatus for breaking brittle materials

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

1997-03-03

1998-10-27

Rachuba, Maurina T.

Severing by tearing or breaking

Methods

With preliminary weakening

225 935, 225 97, 225 965, B26F 300

Patent

active

058267727

ABSTRACT:
A system for breaking large sheets of brittle material such as glass into smaller sheets, in which at least one laser is moved across a sheet of brittle material having two major surfaces to form two vent cracks in the sheet, a first vent crack in a first path on one side of the sheet and a second vent crack in a second path on the other side of the sheet. The sheet is broken into smaller sheets by applying a bending moment under the vent cracks.

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