Process strategies on laser-based melting of glass powder

  • This paper presents the laser-based powder bed fusion (L-PBF) using various glass powders (borosilicate and quartz glass). Compared to metals, these require adapted process strategies. First, the glass powders were characterized with regard to their material properties and their processability in the powder bed. This was followed by investigations of the melting behavior of the glass powders with different laser wavelengths (10.6 µm, 1070 nm). In particular, the experimental setup of a CO2 laser was adapted for the processing of glass powder. An experimental setup with integrated coaxial temperature measurement/control and an inductively heatable build platform was created. This allowed the L-PBF process to be carried out at the transformation temperature of the glasses. Furthermore, the component’s material quality was analyzed on three-dimensional test specimen with regard to porosity, roughness, density and geometrical accuracy in order to evaluate the developed L-PBF parameters and to open up possible applications.

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Metadaten
Author:Thomas Schmidt, Susanne Kasch, Fabian EichlerORCiD, Laura Thurn
Parent Title (English):LiM 2021 proceedings
Document Type:Conference Proceeding
Language:English
Year of Completion:2021
Tag:3D-printing; additive manufactureing; glass; laser based powder fusion
Length:10 Seiten
Note:
LiM (Lasers in Manufacturing) 2021, June 21 - 24, 2021, online
Link:https://wlt.de/sites/default/files/2021-10/additive_manufacturing_non-metals/Contribution_185.pdf
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Maschinenbau und Mechatronik
FH Aachen / IaAM - Institut für angewandte Automation und Mechatronik