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What is cold spray?

Graham Immerman
January 29, 2018

Have you heard of cold spray additive manufacturing? It's a new technique for making high-performance magnets and it streamlines the process. The process, "Involves a material in fine powder form being accelerated in a high-velocity compressed gas jet. A stream of powder hits the substrate at great speed and begins building up a layer at a time, creating complex shapes thanks to industrial robot control. Compared to other additive manufacturing technologies, cold spray additive manufacturing has extremely high buildup rates, allowing for the production of several kilograms of magnets per hour." At MachineMetrics, we are all about saving time and money! 

Fabricating Better Magnets with Cold Spray Additive ManufacturinSource: http://3dprint.com

The high-performance magnets used in electric motors are typically made through processes like powder compaction, for sintered magnets, or injection molding for bonded magnets. These processes require multiple steps – the magnets need to first be fabricated and then shaped and assembled into a final product. But a pair of Canadian researchers have come up with a better way that combines all of those steps into one. Read More

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