Non Newtonian material behaviour in extrusion based 3D printing: Investigation of critical process parameters

Markus Brillinger, Kevin Ayrton Pendl*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

During the last years, the development of processes for 3D-printing has been driven forward. Besides optimizing the printing process and developing new types of processes by altering components of the printer for example, research is also being pursued to investigate new materials suitable for 3D printing, including extrusion-based processes. Most of the printing materials show non-Newtonian behaviour within certain limits. Understanding the rheology of these materials but also the impact on the whole printing process can be a key factor for the printing quality. The origin of this paper is the attempt to point out critical process parameters in the process development of extrusion-based processes using materials with non-Newtonian behaviour. Focus is set on four types of materials including polymers, slurries, foods and biomaterials. After a short summary of the state of the art, the critical process parameters are discussed. The present paper shows that parameters like a shear-thinning or thixotropic behaviour, the sort of the filler material as well as the temperature and yield stress are of great importance for all four discussed groups.

Original languageEnglish
Title of host publicationProceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering (MCM'20)
Pages1-10
Number of pages10
DOIs
Publication statusE-pub ahead of print - 18 Aug 2020
Event6th World Congress on Mechanical, Chemical, and Material Engineering - Virtuell, Virtuell, Canada
Duration: 17 Aug 202018 Aug 2020
https://mcmcongress.com/

Publication series

NameProceedings of the World Congress on Mechanical, Chemical, and Material Engineering

Conference

Conference6th World Congress on Mechanical, Chemical, and Material Engineering
Abbreviated titleMCM'20
CountryCanada
CityVirtuell
Period17/08/2018/08/20
Internet address

Keywords

  • 3D printing
  • Material behaviour
  • Non-Newtonian
  • Process parameters

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Chemical Engineering(all)

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