Glass Sheet Bending Process

A process for bending tempered glass.

Glass sheet bending process.

Bending a glass pane or bottle to a precise shape is not feasible without professional equipment. The invention also relates to a process for manufacturing a bent glazing comprising a glass sheet comprising a peripheral compression belt and an orifice at least partially inside the peripheral compression belt said orifice having an edge compressive stress of at least 4 mpa and preferably of at least 8 mpa comprising the preparation of the glass sheet by the process according to the invention comprising the local cooling followed by the cutting of the orifice in the locally cooled zone. Using the new laser based glass bending process it is possible to achieve precisely defined and extremely small bend radii so that even laminated safety glass can be bent around a corner. Non isothermal processing of the glass with hot and cold areas within the glass sheet enables.

All you need is a flame. At fraunhofer iwm glass bending processes have been developed for forming sheet glass especially with application of local heating. The process involves adhering two sheets of tempered glass in overlying relation and positioning a containment barrier such as vinyl sheets over the adhered.