Mechanical Behaviour of Macroscopic Interfaces for 3D Printed Multi-material Samples

The development of 3D Printing technologies introduced new possibilities regarding multi-material part production. Fused Filament Fabrication (FFF) is one of those technologies suitable for multi-material 3D printing. Usually, multi-material parts are manufactured from different blends of the same m...

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Bibliographic Details
Published in:MATEC Web of Conferences 2022, Vol.368, p.1004
Main Authors: Ermolai, Vasile, Sover, Alexandru, Boca, Marius Andrei, Hriţuc, Adelina, Slătineanu, Laurenţiu, Nagîţ, Gheorghe, Stavarache, Răzvan Cosmin
Format: Article
Language:English
Subjects:
Chemical bonds
Chemical compatibility
contact geometry
contact interface
Fused deposition modeling
fused filament fabrication
interlocking mechanism
Mechanical properties
multi-material
Polyurethane resins
Thermoplastic resins
Three dimensional printing
Urethane thermoplastic elastomers
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Summary:The development of 3D Printing technologies introduced new possibilities regarding multi-material part production. Fused Filament Fabrication (FFF) is one of those technologies suitable for multi-material 3D printing. Usually, multi-material parts are manufactured from different blends of the same material, also known as multi-colour 3D printing, or from materials with good chemical compatibility. Conventionally, a simple face-to-face bond interface between parts’ bodies and a chemical bond between thermoplastics define the mechanical performance of multi-material components. In this regard, the paper aimed to investigate the strength of the contact interface of multi-material specimens using a geometrical approach. Therefore, multiple interlocking interfaces were investigated, such as omega shape, T-shape, dovetail, and others for samples made of low-compatibility thermoplastic materials, acrylic styrene-acrylonitrile (ASA), thermoplastic polyurethane (TPU). The results showed that macroscopic inter-locking interfaces are significantly increasing the mechanical properties.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/202236801004