Part made of quartz glass, laser-polished and edge-rounded.
Picture Source: Fraunhofer ILT / Volker Lannert, Aachen
In addition, the surface of the edge is polished. Subsequently, the edge surface and adjacent areas exhibit a very low level of micro-roughness. The result is not only greater stability in the edge region, but also a noticeable increase in the gloss level of the processed area.“You can set the degree to which the edge is to be rounded and polished by means of the process temperature in the surface near layer,” explains Annika Richmann, project manager at Fraunhofer ILT. “Although parts are usually processed using a beam diameter of several millimeters, very local processing is also possible. Laser polishing can be used on virtually all types of glass, with greater process speeds obtainable for low-melting glasses.”
Axel Bauer | Fraunhofer-Institut
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