Additive Manufacturing of Titanium and Titanium Alloy Biomedical Devices
Additive manufacturing (AM), or three-dimensional (3D) printing, has been widely used for biomedical devices due to its higher freedom of design and its capability for mass customization. Additive manufacturing can be broadly classified into seven categories: binder jetting, directed energy deposition (DED), material extrusion, material jetting, powder-bed fusion (PBF), sheet lamination, and vat photopolymerization. Due to their capability for manufacturing high-quality parts that are fully dense, PBF and DED are the most widely used groups of AM techniques in processing metals directly. In this article, the processing of titanium and its alloys by PBF and DED is described, with a specific focus on their use in biomedical devices. The article then covers the density and mechanical properties of both commercially pure titanium and titanium-aluminum-vanadium alloy. Lastly, the challenges and potential of using new titanium-base materials are discussed.
S.L. Sing, S. Huang, W.Y. Yeong, Additive Manufacturing of Titanium and Titanium Alloy Biomedical Devices, Additive Manufacturing in Biomedical Applications, Vol 23A, ASM Handbook, Edited By Roger J. Narayan, ASM International, 2022, p 192–200, https://doi.org/10.31399/asm.hb.v23A.a0006857
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