Grayscale digital light processing 3D printing for highly functionally graded materials
Автор: ScienceVio
Загружено: 2019-05-03
Просмотров: 1489
Описание:
Grayscale digital light processing 3D printing for highly functionally graded materials. Xiao Kuang et al (2019), Science Advances https://doi.org/10.1126/sciadv.aav5790
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.
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