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Meeting MS&T23: Materials Science & Technology
Symposium Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
Presentation Title Laser Powder Bed Fusion of Tungsten Carbide-Nickel Geometries Leveraging Thermomechanical Modeling
Author(s) Alexander Gourley, Edgar Mendoza Jimenez, Reeja Jayan, Jack Beuth
On-Site Speaker (Planned) Alexander Gourley
Abstract Scope The combination of hardness, abrasion resistance, and fracture toughness make cemented carbides desirable for machining and tooling, but these properties limit achievable geometries when fabricating parts through traditional techniques. Laser powder bed fusion (LPBF) provides a fabrication pathway through which cemented carbide parts can be achieved with greater geometric freedom. Our lab explored various process parameter combinations with a tungsten carbide - 17wt% Ni agglomerated powder, but recoater blade collisions limited achievable geometries to 15 mm tall cylinders. Leveraging a commercially available thermomechanical modeling software, Netfabb, the effects of interlayer timing, parameter combinations, and geometric features on recoater clearance guided designs for two prints evaluating printing larger and taller parts with more geometric features. All parts were printed to completion except for a long geometry that delaminated from the build plate. the measured density and hardness values in the taller parts were similar to the previous 15 mm tall cylinders.


A Novel Integrated Additive Manufacturing and Laser Processing Method for Protonic Ceramic Energy Devices
Additive Continuous Microwave Sintering for Lunar Construction
Additive Manufacture of Cordierite Ceramic Materials via Digital Light Processing
Additive Manufacturing of Solid-state Electrolytes for Lithium Metal Batteries
Aqueous Slurry Development and Characterization for Multiple-Oxide Direct Ink Writing
Ceramic 3D Printing Utilizing Binder Jetting Technology for Medical Uses
Challenges and Future Directions for Ceramic Additive Manufacturing in Incorporation of Fiber Reinforcements and Machine Learning Strategies
Custom Manufacturing of Shape-conforming Battery Components Using VPP
Direct Ink Writing of Semiconductive Oxide-based Sensors for High-temperature Applications
Evaluation of Calibration Measurements for Accelerated Development of Ceramic Vat Photopolymerization Process and Post-process Parameters
Fused Deposition Modeling of Polycarbosilane to Manufacture Silicon Carbide-based Materials
Hydrothermal-assisted Jet Fusion: A Selective Cold Sintering Approach
Laser Powder Bed Fusion of Tungsten Carbide-Nickel Geometries Leveraging Thermomechanical Modeling
Materials Development for Demanding Applications with Binderjet WC-Co
The Influence of Print Layer Orientation on the Mechanical Properties of SIC and CF/SIC CMCS Formed via Direct Ink Writing
Ultra-fast Laser Sintering of Ceramics and Glasses, and Machine Learning-based, Processing-microstructure-property Predictions for Laser-sintered Ceramics and Glasses
Use of Powder Bed Fabrication Processes for Ceramic Additive Manufacturing

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