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Hybrid Multimaterial 3D Printing Using Photocuring-While-Dispensing
Jie Jin1,2, Fangzhou Zhang3, Yulong Yang4
1Center for Advanced Manufacturing, University of Southern California, Los Angeles, CA, 90007, USA.
Small (Weinheim an Der Bergstrasse, Germany)
|September 9, 2023
Summary
This study introduces a hybrid 3D printing method combining vat photopolymerization (VPP) and direct-ink-writing (DIW) for high-resolution, multimaterial printing. The novel technique enables fabrication of complex functional structures with diverse material integration.
Area of Science:
- Additive Manufacturing
- Materials Science
- Engineering
Background:
- Vat photopolymerization (VPP) excels in high-resolution printing.
- Direct-ink-writing (DIW) is known for its multimaterial capabilities.
- Existing methods face limitations in combining high resolution and multimaterial printing.
Purpose of the Study:
- To present a novel hybrid 3D printing technique.
- To combine the strengths of VPP and DIW processes.
- To achieve high-resolution and multimaterial printing of functional structures.
Main Methods:
- A hybrid approach synchronizing laser-controlled photocuring with syringe-based material dispensing.
- Utilizing a photocurable matrix and dispensing liquid-like materials.
- Employing a Galvano mirror-controlled laser for selective photocuring and synchronized dispensing to control diffusion and in situ fixture.
Main Results:
- Successful fabrication of intricate 3D ant and wheel prototypes.
- Demonstration of fabricating heterogeneous structures with complex geometries and high resolution.
- Integration of diverse materials, irrespective of photocurability and viscosity.
Conclusions:
- The proposed photocuring-while-dispensing strategy overcomes limitations of conventional multimaterial 3D printing.
- This hybrid method enables versatile fabrication of functional structures and devices.
- The demonstrated process opens avenues for diverse applications requiring complex geometries and integrated functionalities.
