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New Partially Water-Soluble Feedstocks for Additive Manufacturing of Ti6Al4V Parts by Material Extrusion

Eickhoff, Ralf 1; Antusch, Steffen 1; Nötzel, Dorit 1; Hanemann, Thomas 1
1 Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

In this work, a process chain for the realization of dense Ti6Al4V parts via different material
extrusion methods will be introduced applying eco-friendly partially water-soluble binder systems.
In continuation of earlier research, polyethylene glycol (PEG) as a low molecular weight binder
component was combined either with poly(vinylbutyral) (PVB) or with poly(methylmethacrylat)
(PMMA) as a high molecular weight polymer and investigated with respect to their usability in FFF
and FFD. The additional investigation of different surfactants’ impact on the rheological behaviour
applying shear and oscillation rheology allowed for a final solid Ti6Al4V content of 60 vol%, which is
sufficient to achieve after printing, debinding and thermal densification parts with densities better
than 99% of the theoretical value. The requirements for usage in medical applications according to
ASTM F2885-17 can be fulfilled depending on the processing conditions.


Verlagsausgabe §
DOI: 10.5445/IR/1000157913/pub
Veröffentlicht am 18.04.2023
Originalveröffentlichung
DOI: 10.3390/ma16083162
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2023
Sprache Englisch
Identifikator ISSN: 1996-1944
KITopen-ID: 1000157913
HGF-Programm 43.34.01 (POF IV, LK 01) Lightweight Materials for Structural and Medical Application
Erschienen in Materials
Verlag MDPI
Band 16
Heft 8
Seiten Art.-Nr.: 3162
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 17.04.2023
Schlagwörter material extrusion; FFF; FDM; FFD; additive manufacturing; titanium alloys; Ti6Al4V;, water-soluble binder; feedstock
Nachgewiesen in Dimensions
Scopus
Web of Science
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