Additive anufacturing of fused silica using coaxial laser glass deposition: experiment, simulation and discussion

Grabe, Tobias; Lammers, Marius; Wang, Song; Wang, Xuejian; Rettschlag, Katharina; Sleiman, Khodor; Barroi, Alexander; Biermann, Tobias; Ziebehl, Arved; Röttger, Julian; Ley, Peer-Phillip; Wolf, Alexander; Jaeschke, Peter; Hermsdorf, Jörg; Kaierle, Stefan; Ahlers, Henning; Lachmayer, Roland

doi:10.1117/12.2577205

Cited by 18 publications

(3 citation statements)

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“…In order to achieve directionally independent printing, the filament should be fed perpendicular to the print plate, while being heated symmetrically. The glass 3D printer used in this work was based on this principle, with the hot-zone formed using four focused laser beams from a CO 2 -laser, similar to the system described in (Grabe et al, 2021), and is schematically shown in Figure 1. The glass filament was made using synthetic high purity fused silica (F300, Heraeus) and manufactured using a commercial optical fiber draw tower.…”

Section: Method Materials and Experimental Preparations 3d Printer An...mentioning

confidence: 99%

“…These glasses, however, were not optically clear due to bubbles and porosity from non-complete sintering. Using the rod-or filament-feeding, optically clear glass structures were successfully made in 2014 (Luo, Pan and Kinzel, 2014) using CO 2 -laser heating and manually feeding 1 mm diameter glass rods used as feedstock, with later work automating the feeding process (Luo et al, 2018), and using thin fibers (John M. Hostetler et al, 2018;von Witzendorff et al, 2018;Kranert et al, 2020;Grabe et al, 2021;Capps et al, 2022). Glass 3D printing by melt extrusion was reported in 2015 (Klein et al, 2015;Inamura et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Investigation of glass bonding and multi-layer deposition during filament-based glass 3D printing

2022

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Additive manufacturing of glass is an emerging technology that is foreseen to have a big impact on glass fabrication for innovative solutions within research, as well as for industrial applications. One approach is 3D printing using glass filaments. This technique is similar to directed energy deposition (DED) of metal wires using laser melting, which is highly versatile in printing complex structures. For glass, however, the technique is still at an early stage of development. Printing complex multi-layer structures have been challenging, often resulting in poor control of print geometry, excessive evaporation, as well as low repeatability. In this work we present a systematic study of filament-based 3D printing of silica-glass using CO2-laser heating. The study focuses on the bonding width (wetting) during first-layer printing onto fused quartz substrates and during multi-layer printing, i.e., layer-to-layer bonding. The main printing parameters that have been investigated include printing speed, filament feed rate, and incident laser power. Bonding widths from 17 to 221 µm are achieved with 196 µm diameter fused silica filaments in single line printing. Using experimentally determined printing parameters for such filament, 3D printed objects consisting of more than 100 layers were subsequently demonstrated. The results presented here provide an approach in glass 3D printing, using the filament-based technique, enabling highly complex glass structures to be fabricated.

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Section: Method Materials and Experimental Preparations 3d Printer An...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of glass bonding and multi-layer deposition during filament-based glass 3D printing

2022

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“…3D printing of silica is a technological area in its infancy, only recently achieving the commercialization stage in some of its implementations, with products such as Glassomer 31 and Nobula 32 . In research settings, a range of glass printing techniques was demonstrated with varying degrees of success [33][34][35][36][37][38][39][40] . The most promising, and so far, the only technique that has resulted in a drawable preform is stereolithography (SLA) 34 .…”

Section: Architectural and Morphological Control Of The Fiber Cross-s...mentioning

confidence: 99%

Creating fiber-embedded photonic circuitry by liquid-phase structuring of multi-material cores

Lima

Leffel

Zheng

et al. 2023

Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI

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Multi-material fibers are a promising platform for integrating nanoscale structures into macroscale photonic systems due to their unique aspect ratio: fiber cores can be kilometers long and sub-micrometric in their cross-section simultaneously. We are introducing Very Large-Scale Integration for Fibers (or, in short, VLSI-Fi) – manufacturing of integrated photonic circuits in a fiber analogous to VLSI from the microelectronics realm. VLSI-Fi starts with a thermal draw of the 3D printed preform, defining the cross-sectional geometry of the fiber, followed by the axial patterning of the fiber cores into arrays of integrated devices using a material-selective spatially coherent capillary breakup1,2 . Additional control over the photonic and electronic properties of devices is accomplished through segregation-driven control of doping. The result is a fiber-embedded integrated photonic circuit with user-defined 3D architecture providing the desired functionality. We argue that the capillary breakup of a viscous thread, nonlinear and often chaotic, becomes predictable if the axial symmetry of the thread viscosity is broken. We found that the capillary breakup of semiconducting fiber cores initiated by feeding the fiber through a spot-like liquefaction zone results in deterministic photonic and optoelectronic structures, such as gratings and spherical resonators. As a proof of concept, we demonstrate a selective breakup of a silicon core in fiber with one silicon and one vanadium core into an array of spherical silicon resonators, with a vanadium electrode flanking those resonators for electrical tuning of their resonant frequencies. Such cascaded resonators are a nontrivial example of photonic circuitry implemented in fiber using a non-CMOS approach.

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Additive Manufacturing with Borosilicate Glass and Soda-Lime Glass

Fröhlich

Hildebrand

Bergmann

2022

2nd International Conference on Advanced Joining Processes (AJP 2021)

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Additive anufacturing of fused silica using coaxial laser glass deposition: experiment, simulation and discussion

Cited by 18 publications

References 0 publications

Investigation of glass bonding and multi-layer deposition during filament-based glass 3D printing

Investigation of glass bonding and multi-layer deposition during filament-based glass 3D printing

Creating fiber-embedded photonic circuitry by liquid-phase structuring of multi-material cores

Additive Manufacturing with Borosilicate Glass and Soda-Lime Glass

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