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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
Presentation Title Temporary Coating for Binder Jet 3D Printed Tungsten Carbide-Cobalt Parts
Author(s) Pierangeli Rodriguez De Vecchis, Katerina Kimes, Drew Elhassid, Markus Chmielus
On-Site Speaker (Planned) Pierangeli Rodriguez De Vecchis
Abstract Scope Tungsten carbide-cobalt (WC-Co) is a cermet material with excellent mechanical properties provided by small WC grains in a Co-matrix. Traditionally, WC-Co parts are formed through powder injection molding (slow, expensive and restricted to mass production). Binder jet 3D printing (BJ3DP) appeared as an alternative to traditional WC-Co manufacturing, allowing the production of highly detailed parts. Printing parameters for this complex powder were selected through a Design of Experiments. Previous studies showed storage and transportation of green parts induced cracks before sintering. This project aimed to find a temporary coating to facilitate transportation of green parts. ExOne solvent binder 04 and low-viscosity Cerita 983 runner wax (Paramelt Inc.) were compared. Mainly through microstructural analysis (grain size, squareness, phases and defects present), density and hardness results, the binder-coating was chosen to be the best option as it improved edge retention and mechanical properties of the part without significantly damaging the microstructure.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing of 8 mol % Yttria Stabilized Zirconia Ceramics
Additive Manufacturing of Bi-continuous Piezocomposites based on Triply Periodic Micro-skeleton for Tailorable Hydrostatic Performance
Direct Ink Writing of Chopped Fiber Ultra-High Temperature Ceramic Matrix Composites (UHTCMCs)
Effects of Printing Parameters on Density And Mechanical Properties of Binder Jet 3D Printed WC-Co
Effects of Printing Parameters on Microstructure and Mechanical Properties of Binder Jet 3D Printed WC-Co
Fast Fabrication of Bioceramics Parts by Combining Stereolithography and Microwave Sintering
Fused Filament Fabrication of Metal Matrix Composites (MMC)
Geometry Limitations of Indirect Laser Sintering of Alumina
Hybrid Additive Manufacturing Technology Applied to Si3N4 Freeform Components Fabrication
Initiation of Selective Laser Flash Sintering in Yttria-Stabilized Zirconia
Laser-based Additive Manufacturing of Bi-metallic & Tri-metallic Oxide Layers
Manufacturing, Microstructure and Compressive Mechanical Properties of WC-12Co Cermet Material Fabricated by Direct Energy Deposition
Process Parameter Variations and 3D Printing of Ceria Ceramics
Sintering, Characterization and Evaluation of Ceramics Recycled from Waste Soda-lime-Silica Glass and White Corn Cob Ash
Temporary Coating for Binder Jet 3D Printed Tungsten Carbide-Cobalt Parts
Toughening of SiC-based Ceramics by Chopped Fiber via Selective Laser Sintering: Preliminary Thinking and Attempts
Ultra-fast, Selective Laser Sintering during Additive Manufacturing of Alumina
Uncertainty Quantification in Additive Manufacturing of Piezocomposites through Physics-informed Data-driven Modelling

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