permanent magnet

Asked by  | 19th Jun, 2008, 07:37: PM

Expert Answer:

Some occur naturally and some are manufactured.

Permanent magnets are manufactured by one of the following methods:

Sintering, (Rare Earths, Ceramics, and Alnicos)

Pressure Bonding or Injection Molding, (Rare Earths and Ceramics)

Casting, (Alnicos)
Extruding, (Bonded Neodymium and Ceramics)
Calendering (Neodymium and Ceramics)

you can read more at the following url


Answered by  | 21st Jun, 2008, 03:25: PM

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