New partially water-soluble feedstocks for additive manufacturing of Ti6Al4V parts by material extrusion

Abstract: 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

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Materials. - 16, 8 (2023) , 3162, ISSN: 1996-1944

Classification
Ingenieurwissenschaften und Maschinenbau

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2023
Creator
Contributor

DOI
10.3390/ma16083162
URN
urn:nbn:de:bsz:25-freidok-2354987
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 11:04 AM CEST

Data provider

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Time of origin

  • 2023

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