Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-10184 Konferenzveröffentlichung Weiss, Christian, ; Heslenfeld, Jonas, ; Saewe, Jasmin Kathrin, ; Bremen, Sebastian, bremen@fh-aachen.de; Häfner, Constantin Leon, Investigation on the influence of powder humidity in Laser Powder Bed Fusion (LPBF) In the Laser Powder Bed Fusion (LPBF) process, parts are built out of metal powder material by exposure of a laser beam. During handling operations of the powder material, several influencing factors can affect the properties of the powder material and therefore directly influence the processability during manufacturing. Contamination by moisture due to handling operations is one of the most critical aspects of powder quality. In order to investigate the influences of powder humidity on LPBF processing, four materials (AlSi10Mg, Ti6Al4V, 316L and IN718) are chosen for this study. The powder material is artificially humidified, subsequently characterized, manufactured into cubic samples in a miniaturized process chamber and analyzed for their relative density. The results indicate that the processability and reproducibility of parts made of AlSi10Mg and Ti6Al4V are susceptible to humidity, while IN718 and 316L are barely influenced. Amsterdam Elsevier 2022 5 Procedia CIRP 111 Teil der Sonderausgabe: 12th CIRP Conference on Photonic Technologies [LANE 2022] 115 120 10.1016/j.procir.2022.08.102 weltweit https://doi.org/10.1016/j.procir.2022.08.102 Fachbereich Maschinenbau und Mechatronik