| Project name | Glass edge strength |
|---|---|
| Acronym | Glass edge strength |
| Project partner |
|
| Grantor | Fachverband Konstruktiver Glasbau e.V. (FKG) |
| Duration | since 2010 |
| Project content |
The edge strength of glass – especially annealed flat glass – is decisive for the design of thermally induced glass breakage (“thermal breakage”) and is primarily dependent on the glass processing procedures. It should be noted that the type of processing (e.g. cut, ground, polished) and the edge shape (e.g. straight edge, C-edge, K-edge) per se cannot be used to predict the edge strength. In general, the strength depends on the respective manufacturing processes. With optimised process parameters in glass processing, higher characteristic strengths can be achieved for the glass edge, as shown by extensive and published results on glass edges cut conventionally with cutting wheels. This offers users the opportunity to avoid the subsequent thermal tempering process and contribute significantly to the sustainable use of glass. The aims of the research are: • to develop and provide process-safe recommendations for edge processing from cutting to polishing for higher strength edges • to provide users verification options for determining edge strength • to transfer the verified findings into data sheets and standardisation |
