International Journal of Extreme Manufacturing, Volume. 6, Issue 4, 42006(2024)

Digital light processing based multimaterial 3D printing: challenges, solutions and perspectives

Cheng Jianxiang, Yu Shouyi, Wang Rong, and Ge Qi

Multimaterial (MM) 3D printing shows great potential for application in metamaterials, flexible electronics, biomedical devices and robots, since it can seamlessly integrate distinctive materials into one printed structure. Among numerous MM 3D printing technologies, digital light processing (DLP) MM 3D printing is compatible with a wide range of materials from hydrogels to ceramics, and can print MM 3D structures with high resolution, high complexity and fast speed. This paper introduces the fundamental mechanisms of DLP 3D printing, and reviews the recent advances of DLP MM 3D printing technologies with emphasis on material switching methods and material contamination issues. It also summarizes a number of typical examples of DLP MM 3D printing systems developed in the past decade, and introduces their system structures, working principles, material switching methods, residual resin removal methods, printing steps, as well as the representative structures and applications. Finally, we provide perspectives on the directions of the further development of DLP MM 3D printing technology.

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Cheng Jianxiang, Yu Shouyi, Wang Rong, Ge Qi. Digital light processing based multimaterial 3D printing: challenges, solutions and perspectives[J]. International Journal of Extreme Manufacturing, 2024, 6(4): 42006

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Paper Information

Category: Topical Review

Received: Sep. 1, 2023

Accepted: Dec. 25, 2024

Published Online: Dec. 25, 2024

The Author Email:

DOI:10.1088/2631-7990/ad4a2c

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