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vat-photopolymerization

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Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006578
EISBN: 978-1-62708-290-7
...-photon polymerization; DIW, direct ink writing; FDM, fused-deposition modeling Fig. 2 Current additive manufacturing processes developed to fabricate ceramic components. Source: Ref 2 Fig. 3 Flowchart of vat photopolymerization (VPP)-based ceramic fabrication Fig. 6...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006546
EISBN: 978-1-62708-290-7
... = 50 μm; surface tension = 0.0723 N/m; viscosity = 0.008 Ns/m 2 ; density = 1000 kg/m 3 ; and droplet spacing = 65 μm. Source: Ref 28 Fig. 12 Laser scan simulation results showing effect of surface roughness nonuniform exposure distribution typical of vat photopolymerization (VPP...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006555
EISBN: 978-1-62708-290-7
... of EADS and Altair (Ref 2,3) Fig. 4 Cellular bone scaffold for dental implantation. Courtesy of Nanyang Technological University Fig. 7 Schematic of vat photopolymerization Fig. 8 Stereolithography wind tunnel part designed for Lotus Formula 1. Courtesy of 3D Systems (Ref 6...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006556
EISBN: 978-1-62708-290-7
.... The printed part can be fully metallic or a metal/polymer composite. Fully metallic parts would be produced by laser melting or electron beam melting of a metal powder. Metal/polymer parts can be produced by binder jetting, material extrusion, material jetting, and vat photopolymerization. These methods...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006551
EISBN: 978-1-62708-290-7
... multimaterial printing by increasing the number of extrusion heads but must account for additional controls to start and stop material flow and to ensure no collisions occur between nozzles and deposited materials. Powder-bed fusion and vat photopolymerization processes require much more intricate materials...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006562
EISBN: 978-1-62708-290-7
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006558
EISBN: 978-1-62708-290-7
... electronic structures ( Ref 4 – 6 ). Both vat photopolymerization and thermoplastic extrusion 3D printing have been used to create geometrically complex dielectric structures that serve as an electrical device substrate. During interruptions in these processes, ink deposition can provide a network...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006560
EISBN: 978-1-62708-290-7
... layer, for example, when a lamp is used to cure the droplets of photopolymer resin that were just deposited. In contrast, powder-bed fusion (PBF) and vat photopolymerization (VPP) processes fabricate layers by projecting energy patterns onto a bed or vat of material. In this case, the shape of the cured...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002449
EISBN: 978-1-62708-194-8
... of the stereolithography process is shown in Fig. 4 . Using stereolithography, the part is constructed by curing liquid photopolymer resin in a vat. The photopolymer resin consists of plastic monomer and oligomer combined with a photoinitiator. When light of the appropriate wavelength exposes the liquid, it rapidly...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006570
EISBN: 978-1-62708-290-7
... manufactured parts Table 2 Surface roughness of additively manufactured parts ASTM Nomenclature Process name Minimum layer thickness, μm Surface finish, Ra, μm Vat photopolymerization Stereo lithography 10 2–40 Powder bed fusion Selective laser sintering 125 5–35 Material...