Solid Freeform Fabrication Proceedings

Bourell, D. L.; Wood, Kristin L.

doi:10.21236/ada422996

Cited by 12 publications

(9 citation statements)

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“…To eliminate the need for additional support structures during printing, the development of self‐supporting structures for filling the interior of models has been explored in various studies [LGC*18, BAH11, ZZW*21, VGB14a]. Luo et al [LBRM12] proposed the Chopper framework which breaks down a large 3D object into smaller parts that can be printed.…”

Section: Related Workmentioning

confidence: 99%

An Efficient Self‐supporting Infill Structure for Computational Fabrication

Wang,

Liu,

et al. 2023

Computer Graphics Forum

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Efficiently optimizing the internal structure of 3D printing models is a critical focus in the field of industrial manufacturing, particularly when designing self‐supporting structures that offer high stiffness and lightweight characteristics. To tackle this challenge, this research introduces a novel approach featuring a self‐supporting polyhedral structure and an efficient optimization algorithm. Specifically, the internal space of the model is filled with a combination of self‐supporting octahedrons and tetrahedrons, strategically arranged to maximize structural integrity. Our algorithm optimizes the wall thickness of the polyhedron elements to satisfy specific stiffness requirements, while ensuring efficient alignment of the filled structures in finite element calculations. Our approach results in a considerable decrease in optimization time. The optimization process is stable, converges rapidly, and consistently delivers effective results. Through a series of experiments, we have demonstrated the effectiveness and efficiency of our method in achieving the desired design objectives.

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Section: Related Workmentioning

confidence: 99%

An Efficient Self‐supporting Infill Structure for Computational Fabrication

Wang,

Liu,

et al. 2023

Computer Graphics Forum

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“…For example, rapid manufacturing of custom metal tooling is an area of extensive research in the SFF community. 1,2 Currently, the selective laser sintering (SLS), 3 3-D printing, 4 and laser engineered net shaping (LENS™) 5,6 processes are at various stages of commercialization as prototyping processes that utilize engineering materials. In particular, laser-based SFF processes such as LENS and SLS, which involve localized powder fusion by a moving laser, appear well-suited for direct fabrication of metallic parts.…”

Section: The Role Of Process Variables In Laser-based Direct Metal Somentioning

confidence: 99%

The role of process variables in laser-based direct metal solid freeform fabrication

Beuth

Klingbeil

2001

JOM

172

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“…The first step is to acknowledge the receipt details in a single cycle, no additional tooling, a relatively high speed and accuracy of the process. Development and implementation of at in production would allow to simplify the technological chain of producing critical parts of complex shape, to reduce the time, material, and financial costs [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Phase Composition of Products from Electro-Erosive Cobalto-Chrome Powders, Obtained by Additive Technologies

Агеев

Altukhov

Korolyov

2020

SSP

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The main requirement for powders for additive 3d technologies is the spherical shape of the particles. Such particles are most compactly packed into a certain volume and ensure the "fluidity" of the powder composition in the supply systems of the material with minimal resistance. The wide use of the EED method for processing metal waste into powders for the purpose of their reuse and application in additive technologies is hampered by the lack in the scientific and technical literature of full-fledged information on the effect of the initial composition, regimes and media on the properties of powders and technologies of practical application. Therefore, in order to develop technologies for the reuse of electroerosive powders and to evaluate the effectiveness of their use, complex theoretical and experimental studies are required. The aim of the work was to conduct a phase analysis of additive products from electroerosive cobalt-chrome powders. The phase composition of the samples was studied by X-ray diffraction on a Rigaku Ultima IV diffractometer in Cu-Kα radiation (wavelength λ = 0.154178 nm) using Soller slits. Based on the results of the X-ray diffraction analysis of additive articles from electroerosion cobalt-chrome powders, it has been experimentally established that the main phases in the sintered samples are Co, Cr and Co3C.

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Solid Freeform Fabrication Proceedings

Cited by 12 publications

References 0 publications

An Efficient Self‐supporting Infill Structure for Computational Fabrication

An Efficient Self‐supporting Infill Structure for Computational Fabrication

The role of process variables in laser-based direct metal solid freeform fabrication

The Phase Composition of Products from Electro-Erosive Cobalto-Chrome Powders, Obtained by Additive Technologies

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