ForschungPublikationen
CO2 laser based welding of borosilicate glass by Laser Glass Deposition

CO2 laser based welding of borosilicate glass by Laser Glass Deposition

Kategorien Konferenz (reviewed)
Jahr 2022
Autoren Sleiman, K.; Legutko, M.; Rettschlag, K.; Jäschke, P.; Overmeyer, L.; Kaierle, S.
Veröffentlicht in Procedia CIRP, Volume 111, Pages 466-469
Beschreibung

Due to its thermal and chemical resistance, borosilicate glass finds a wide range of applications in optics, chemical laboratories and in glass apparatus engineering. For the manufacturing of complex glass components, the welding of semi-finished glass products is essential. In the majority of industry, this is realized by operating gas burners in manual processes with low efficiencies. Here, laser-based processing offers the advantage of local heating with high efficiency, since borosilicate-glass has a high absorption for CO2-laser radiation. For this purpose, the welding partners are heated with the CO2-laser, while a borosilicate rod is fed under an angle into the welding zone. In this paper, the welding of borosilicate glasses in butt and 90°-angles using CO2-laser irradiation is demonstrated. Prior to the manufacturing of the weld seams with additional material and the examination via 3-point bending tests, parameter studies are performed for the welding of blind weld seams with regard to the weld seam geometry.

DOI 10.1016/j.procir.2022.08.068.