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PROCESS AND APPARATUS FOR SEPARATING INDIVIDUAL PANES FROM A LAMINATED GLASS SHEET

 
: Kübler, R.; Rist, T.; Hoetger, B.

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Frontpage ()

DE 102010012265 A: 20100322
German
Patent, Electronic Publication
Fraunhofer IWM ()

Abstract
The invention relates to a process for separating at least one individual pane of predefined size and edge form from a laminated glass sheet, which has at least two laminated glass sheet panes which are arranged one above another in adjacent form and between which there is arranged a plastic film, which permanently bonds the laminated glass sheet panes to one another, wherein - a laser track channel which at least weakens the plastic structure of the plastic film is laid into the plastic film along predefined separating lines with the energy of a laser beam, e.g. of the focal point of a focussed laser beam or a parallel laser beam of adequate predefined energy, - the focal point is placed against an edge of the laminated glass sheet and the laser track channel is formed in such a manner that, as the laser process progresses, disintegration fluids arising from the plastic film can escape to the outside via the laser track channel, - then scored lines flush with the laser track channel are mechanically made in the two surfaces of the laminated glass sheet panes, and - then the glass material is broken along the scored lines by bending the laminated glass sheet or by the action of ultrasonic energy, and also to an apparatus for carrying out the process.

: http://publica.fraunhofer.de/documents/N-297814.html