|About this Abstract
||Materials Science & Technology 2017
||Non Beam-based Additive Manufacturing Approaches for Metallic Parts
||Direct Molten Metal Write of Structurally Significant Materials
||William Carter, Zachary Sims, Max Neveau, Lonnie Love, Brian Post, Randall Lind, Michael Kesler, Mark Jaster, David Weiss, Hunter Henderson, Andrew Pascall, Wen Chen, Luke Thornley, Christopher Spadaccini, Scott McCall, Orlando Rios
|On-Site Speaker (Planned)
Direct Molten Metal Write is a scalable fused filament fabrication method enabled by reactive chemistry alloys with structurally significant mechanical properties. Spatial control and molten bead stability are driven by tailored high surface energy interfaces. Oxide stabilized molten metal filaments are deposited directly onto a build surface where they solidify, retaining an intended shape and bonding with previously deposited layers of material. Thermodynamic modeling was used to optimize the solidification path and design alloys that undergo specific solid/liquid invariant reactions. The reactive characteristics of these materials enable intermetallic bonding between layers resulting in good weldability. Electromagnetic heating of ultra-low-cost feedstock, such as cast preforms or wires rather than powders, may increase scalability and adaptation. The system can be used to create large and small-scale parts with faster build rates than traditional metal additive-manufacturing methods. A low-cost prototype desktop scale printer utilizing an electromagnetic heater and open air configuration is discussed.
||Definite: At-meeting proceedings