Details
| Original language | English |
|---|---|
| Article number | 100217 |
| Journal | Additive Manufacturing Letters |
| Volume | 10 |
| Early online date | 3 May 2024 |
| Publication status | Published - Jul 2024 |
Abstract
Multi-Material Additive Manufacturing (MMAM) enables the grading of material properties and the integration of functions within printed parts. While most MMAM methods are limited to process single-component or pre-mixed multi-component materials, the in-process mixing and extrusion of multi-component materials enables innovative material properties and use cases. When processing liquid multi-component materials, the individual component streams need to be homogenized in-process, but the required volume in conventional passive mixing hinders rapid transitions in material composition. In this paper, a two component printhead is presented which combines an active mixing approach with a continuous composition adjustment for a third additive. The approach to control the mixing composition is to influence the hydrodynamic equilibrium of individual material streams before merging them near the point of extrusion. The printhead's functionality is verified in terms of mixing homogeneity and transition speed between material compositions.
Keywords
- Multi-material additive manufacturing, Active mixing, Direct ink writing, Multi-component materials, Rapid-transition printing
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In: Additive Manufacturing Letters, Vol. 10, 100217, 07.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Active-mixing printhead for on-the-fly composition adjustment of multi component materials in Direct Ink Writing
AU - Teves, Simon
AU - Biermann, Tobias
AU - Ziebehl, Arved
AU - Eckert, Gerrit
AU - Hill, Björn Ole
AU - Xia, Panpan
AU - Wollweber, Merve
AU - Ripken, Tammo
AU - Bigall, Nadja-Carola
AU - Lachmayer, Roland Johann
N1 - This research is funded by the German Research Foundation (DFG) under Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453) and by the Ministry for Science and Culture of Lower Saxony (MWK) - School for Additive Manufacturing SAM .
PY - 2024/7
Y1 - 2024/7
N2 - Multi-Material Additive Manufacturing (MMAM) enables the grading of material properties and the integration of functions within printed parts. While most MMAM methods are limited to process single-component or pre-mixed multi-component materials, the in-process mixing and extrusion of multi-component materials enables innovative material properties and use cases. When processing liquid multi-component materials, the individual component streams need to be homogenized in-process, but the required volume in conventional passive mixing hinders rapid transitions in material composition. In this paper, a two component printhead is presented which combines an active mixing approach with a continuous composition adjustment for a third additive. The approach to control the mixing composition is to influence the hydrodynamic equilibrium of individual material streams before merging them near the point of extrusion. The printhead's functionality is verified in terms of mixing homogeneity and transition speed between material compositions.
AB - Multi-Material Additive Manufacturing (MMAM) enables the grading of material properties and the integration of functions within printed parts. While most MMAM methods are limited to process single-component or pre-mixed multi-component materials, the in-process mixing and extrusion of multi-component materials enables innovative material properties and use cases. When processing liquid multi-component materials, the individual component streams need to be homogenized in-process, but the required volume in conventional passive mixing hinders rapid transitions in material composition. In this paper, a two component printhead is presented which combines an active mixing approach with a continuous composition adjustment for a third additive. The approach to control the mixing composition is to influence the hydrodynamic equilibrium of individual material streams before merging them near the point of extrusion. The printhead's functionality is verified in terms of mixing homogeneity and transition speed between material compositions.
KW - Multi-material additive manufacturing
KW - Active mixing
KW - Direct ink writing
KW - Multi-component materials
KW - Rapid-transition printing
UR - http://www.scopus.com/inward/record.url?scp=85192187253&partnerID=8YFLogxK
U2 - 10.1016/j.addlet.2024.100217
DO - 10.1016/j.addlet.2024.100217
M3 - Article
VL - 10
JO - Additive Manufacturing Letters
JF - Additive Manufacturing Letters
M1 - 100217
ER -