Grayscale digital light processing 3D printing for highly functionally graded materials

Xiao Kuang, Jiangtao Wu, Kaijuan Chen, Zeang Zhao, Zhen Ding, Fengjingyang Hu, Daining Fang, H. Jerry Qi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

383 Citations (Scopus)

Abstract

Three-dimensional (3D) printing or additive manufacturing, as a revolutionary technology for future advanced manufacturing, usually prints parts with poor control of complex gradients for functional applications. We present a single-vat grayscale digital light processing (g-DLP) 3D printing method using grayscale light patterns and a two-stage curing ink to obtain functionally graded materials with the mechanical gradient up to three orders of magnitude and high resolution. To demonstrate the g-DLP, we show the direct fabrication of complex 2D/3D lattices with controlled buckling and deformation sequence, negative Poisson's ratio metamaterial, presurgical models with stiffness variations, composites for 4D printing, and anti-counterfeiting 3D printing.

Original languageEnglish
Article numbereaav5790
JournalScience advances
Volume5
Issue number5
DOIs
Publication statusPublished - 2019

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Kuang, X., Wu, J., Chen, K., Zhao, Z., Ding, Z., Hu, F., Fang, D., & Qi, H. J. (2019). Grayscale digital light processing 3D printing for highly functionally graded materials. Science advances, 5(5), Article eaav5790. https://doi.org/10.1126/sciadv.aav5790