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Additive manufacturing by digital light processing: a review

TitleAdditive manufacturing by digital light processing: a review
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2022
AuthorsChaudhary, R., Fabbri Paride, Leoni Enrico, Mazzanti Francesca, Akbari R., and Antonini C.
JournalProgress in Additive Manufacturing

Additive manufacturing is a layer-by-layer strategy enabling the advanced design and fabrication of complex 3D objects and structures, overcoming geometry limitations and reducing waste production compared to conventional technologies. Among various additive manufacturing technologies, digital light processing (DLP), is an additive manufacturing technology used to print photopolymer parts, using a projected light source to cure an entire layer at once. Initially developed for pure resins, recent advances have demonstrated the potential of DLP in the polymerization of ceramic and metal-loaded suspensions, enabling the fabrication of ceramic and metal components after proper debinding and sintering. Such flexibility increases the potential of DLP for different applications, ranging from dental implants and bone scaffolds to smart biomaterials for soft robotics, smart wearables, and microfluidic devices. The review provides an overview of DLP technology and its recent advances; specifically, the review covers the photopolymer properties, the ceramic and metallic feedstock preparation, and the light-matter interaction mechanism underpinning the printing and post-processing steps. Finally, a description of the current application is provided and complemented with future perspectives. © 2022, The Author(s).


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Citation KeyChaudhary2022