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The Influence of Nozzle Size on the Printing Process and the Mechanical Properties of FFF-Printed Parts
Örebro University, School of Science and Technology.ORCID iD: 0000-0001-6271-6432
Örebro University, School of Science and Technology.
Örebro University, School of Science and Technology.ORCID iD: 0000-0003-1042-3472
Örebro University, School of Science and Technology.ORCID iD: 0000-0003-1655-0392
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2023 (English)In: Industrializing Additive Manufacturing: Proceedings of AMPA2023 / [ed] Christoph Klahn; Mirko Meboldt; Julian Ferchow, Springer, 2023, p. 159-170Conference paper, Published paper (Refereed)
Abstract [en]

Recent process developments in Fused Filament Fabrication (FFF), such as the possibilities to use high end polymers (for example PEEK) or to manufacture metal parts and parts reinforced with continuous fibers, have increased industrial interest. Previously, this additive manufacturing (AM) technology was mostly popular among hobbyists thanks to its low investment cost. With the increased industrial interest comes higher demands on product strength and production efficiency.

The FFF process has many parameters that should be optimized to meet these tougher requirements. One of these parameters is the size of the nozzle through which the filament is extruded. Today a fairly wide range of sizes are available on the market, but most standard-sized printers come equipped with a 0.4 mm nozzle.

In this study, a wide range of nozzles of different sizes have been manufactured to investigate how the nozzle size affects both the printing process and the mechanical properties of the printed parts. Tensile bars have been manufactured in polylactic acid (PLA) using 7 different nozzle sizes. The samples were investigatedby means of computer tomography (CT) and optical microscopy and subjected totensile testing.

Place, publisher, year, edition, pages
Springer, 2023. p. 159-170
Series
Springer Tracts in Additive Manufacturing, ISSN 2730-9576, E-ISSN 2730-9584
Keywords [en]
FFF, Fused Filament Fabrication, PLA, Nozzle size
National Category
Mechanical Engineering
Research subject
Mechanical Engineering
Identifiers
URN: urn:nbn:se:oru:diva-108896DOI: 10.1007/978-3-031-42983-5_11ISBN: 9783031429828 (print)ISBN: 9783031429835 (electronic)OAI: oai:DiVA.org:oru-108896DiVA, id: diva2:1804266
Conference
International Conference on Additive Manufacturing in Products and Applications (AMPA 2023),
Available from: 2023-10-11 Created: 2023-10-11 Last updated: 2023-10-12Bibliographically approved

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Larsson, JoakimLindström, PerKorin, ChristerEkengren, JensKarlsson, Patrik

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