3D Printed Designs for Permanent Magnets Fixation on High Speed Rotors

In this work are presented 3D printed designs for permanent magnets fixation on movable rotors. Fused Filament Fabrication 3D printing technology by polymer magnetic and non-magnetic materials is used. Four types of magnets fixation designs are considered. These are: prismatic surface design – glued or screwed; partially buried magnets with edge fixed magnets design; and fully buried magnets design. Each different design is estimated by initial formal analysis and promising design for 3D printing are prototyped. The prototyped design magnetic flux reluctance is estimated, caused by added fixation elements over the rotor. Reluctance is estimated by finite element method modeling. Material usage during 3D printing is also considered in the presented research.