What do actuators, door catches, generators, and guitar pickups all have in common? Alnico magnets! Used in many different applications, these are the most common magnets used in rotating machinery, meters, instruments, sensing devices, and holding applications. They are manufactured through either a casting or sintering process. Here are some important things to know.

Pressing and Sintering

Sintered magnets are manufactured by compacting fine Alnico powder in a press and then sintering the compacted powder into a solid magnet.

Cast

Cast magnets are manufactured by pouring a molten metal alloy into a mold and then further processing it through various heat-treat cycles. The resulting magnet has a dark gray exterior appearance and may have a rough surface. Machined surfaces have a shiny appearance similar to steel.

Assemblies

Assemblies can be fabricated by adhering magnets with adhesives to suit a range of environments, by mechanically fastening magnets, or by a combination of these methods. Due to the relatively brittle nature of these magnet materials, press fits are not recommended.

To learn more facts about Alnico magnets, check out all the important details including grade and other characteristics at Viona Magnetics.

Alnico Magnets