Cold spray 3D printing leads to new design possibilities in electric motor magnets
“The high-performance permanent magnets used in electric motors serve to rotate the motor when an electrical power is applied. Generally, these motors are made using processes such as powder compaction (sintered magnets) or injection molding (bonded magnets). But these processes, effective as they are, can take a long time and cost a lot of money. Moreover, the shapes these processes can produce are limited in scope.
Fabrice Bernier and Jean-Michel Lamarre, researchers from the National Research Council of Canada, are looking to remove the obstacles of powder compaction and injection molding by developing a cold-spray additive manufacturing process for the production of permanent magnets for electric motors. Their technique combines all the production processes into one, and could consequently save manufacturers both time and money…”
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