About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
A Computational Study on Pore Networks in Binder Jet Additively Manufactured Components with Bimodal Powder Distribution |
Author(s) |
Willem Groeneveld-Meijer, Paula Clares, William Carsky, Jeremy Schreiber, Matthew Lear, Guha Manogharan |
On-Site Speaker (Planned) |
Guha Manogharan |
Abstract Scope |
Binder jet additive manufacturing (AM) allows for manufacturing of complex geometries with traditionally difficult to manufacture materials. Ceramic materials such as alumina, Al2O3, and SiO2, silica, inherently lend themselves to binder jet AM for the purpose of manufacturing complex precursor geometries for metal ceramic composites (MCCs). The toughness and ultimate tensile strength of these MCCs relies upon the liquid metal infiltration into the ceramic precursor pore network. This paper presents a discrete element model (DEM) simulation for settling, spreading, and binder droplet saturation of bimodal particles in order to most efficiently tailor pore networks for MCCs. Specifically, effects of powder particle size distribution, binder saturation of the powder during printing, and resulting pore network mapping. Findings from this study will inform the AM community on the unique interplay between bimodal powders and locally varying binder saturation. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |