Chen, Hongyi;
Bansal, Shubhi;
Plasencia, Diego Martinez;
Di-Silvio, Lucy;
Huang, Jie;
Subramanian, Sriram;
Hirayama, Ryuji;
(2025)
Omnidirectional and Multi-Material In Situ 3D Printing Using Acoustic Levitation.
Advanced Materials Technologies
, 10
(9)
, Article 2401792. 10.1002/admt.202401792.
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Abstract
Additive manufacturing is critical in modern production with advanced applications across various domains. However, achieving omnidirectional printing that can adapt to varying substrate geometries is still a challenge. Moreover, multi-material in situ printing without cross-contamination presents another hurdle. In this study, an acoustophoretic 3D fabrication system capable of omnidirectional and multi-material in situ 3D printing is reported using acoustic levitation. This system harnesses a phased array of transducers (PAT) to finely tune the ultrasonic field, generating acoustophoretic forces that levitate and transport objects in mid-air. It allows omnidirectional in situ printing of materials onto complex substrates with diverse orientations in a contactless and voxel-by-voxel manner. It is capable of manipulating a broad spectrum of materials, including liquids with zero-shear viscosities from 1 to 5,000,000 mPa·s, as well as solids. AcoustoFab has successfully printed structural, conductive, and biological materials in varying directions on complex substrates. Additionally, the contactless approach enables in situ printing safely on a delicate surface, as demonstrated by printing on a human hand. The flexibility and versatility of this approach demonstrate promising applications in areas ranging from biomedical engineering to industrial manufacturing.
| Type: | Article |
|---|---|
| Title: | Omnidirectional and Multi-Material In Situ 3D Printing Using Acoustic Levitation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/admt.202401792 |
| Publisher version: | https://doi.org/10.1002/admt.202401792 |
| Language: | English |
| Additional information: | © 2024 The Author(s). Advanced Materials Technologies published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | 3D printing, acoustic levitation, in situ printing, multi-material, omnidirectional |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10211390 |
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