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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
... Abstract This article presents a detailed account of the processes involved in vat-photopolymerization-based fabrication of ceramics, namely bioceramics, structural ceramics, piezoelectric ceramics, optical ceramics, and polymer-derived ceramics. Information and methods of material preparation...
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
... behavior within particles. The third section on vat photopolymerization (VPP) discusses two primary approaches to modeling VPP processes, namely a lumped-parameter approach to estimate cured regions in the vat, known as the Jacobs model, and a high-fidelity, continuum approach that uses finite-element...
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
... applications have been used for low production runs of parts with complex shapes and geometric features. Additive manufacturing is also used for topology optimization and it impacts the process and supply chain. This article discusses processes, including vat photopolymerization, material jetting, powder bed...
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
..., applications, and advantages of direct metal methods, namely laser melting, material extrusion, binder jetting, material jetting, and vat photopolymerization methods. laser melting precious metal powder COMMONLY RECOGNIZED precious metal items include jewelry, watches and watch parts, coins and...
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
... of polymer chains to form a strong covalently bonded network ( Ref 4 ). While both MJ and vat photopolymerization processes involve photocuring polymers, MJ systems offer a more “office-friendly” process for operators. Compared to vat photopolymerization, in which materials must be carefully...
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
... direct-write technologies have eliminated the need for creating hard tooling such as masks, and consequently, have digitized the printing process. Since the 2000s, direct writing processes have also been leveraged to provide 3D-printed multifunctional electronic structures ( Ref 4 – 6 ). Both vat...
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
... (3D) ceramic components, including binder jetting ( Ref 1 ), material extrusion ( Ref 2 – 6 ), vat photopolymerization ( Ref 7 – 10 ), powder bed fusion ( Ref 11 , 12 ), and directed energy deposition ( Ref 13 – 16 ). All of these techniques involve adding ceramic materials layer by layer. A...
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
... 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 layer is defined by the energy pattern. Directed-energy deposition...
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.a0006570
EISBN: 978-1-62708-290-7
... section of a round SLM Inconel 718 alloy sample showing porosity (1) and unfilled surface defect (2). Table 2 Surface roughness of additively manufactured parts ASTM Nomenclature Process name Minimum layer thickness, μm Surface finish, Ra, μm Vat photopolymerization Stereo...