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Cleaving of glass substrates with shaped edges using a laser-only concept is presented. In a first laser process shaped ultrashort laser pulses modify in a single pass the entire material thickness with arbitrary edge shape geometries. Afterwards in a second pass CO2 laser radiation is absorbed in the modified area and resulting stresses lead to the separation of the glass. We investigate the quality of the achieved edges and corresponding mechanical properties. The cutting strategy, so far conducted on straight contours, is successfully transferred to curved contours maintaining edge qualities.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Myriam Kaiser, Jonas Kleiner, Jannis Wolff, Daniel Flamm, "Customized edge cutting of display glass with laser-only machining," Proc. SPIE 12875, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIV, 128750E (12 March 2024); https://doi.org/10.1117/12.3000909