| Abstract Scope |
Additive manufacturing (AM) of near-net-shaped bonded magnets can help address the criticality of rare earths due to waste minimization and opportunity to reuse feedstock materials. In addition to high volumetric filling fraction of magnetic powder in a polymer binder, high-performance bonded magnets need alignment of the anisotropic magnetic particles. Although post-printing magnetic alignment has been considered, integration of magnetic field sources into AM systems for in-situ alignment will open new horizons for manufacturing complex bonded magnets. This talk will focus on the considerations for achieving high-degree of magnetic field-induced alignment in 3D printing of polymer bonded magnets. The presentation will include the resultant degree of alignment due to competing effects including alignment temperature, applied magnetic field, magnetic particles interactions, loading fraction, and the thermo-rheological state of the polymer. Hence, the talk will shed light into how processing parameters can be tuned for high-performance AM bonded magnets development. |