Develop the design of a magnetizer that can magnetize Nd-Fe-B magnets
of highest strength. This magnetizer is to handle blocks of magnets of
sizes(10x10x5)cm or smaller with thicknesses of no more than 5cm. The
available power supply is a DC bank with 100 volts and 20A output. All
mechanical dimensions are to be clearly marked. Detailed of coil
design parts are required. An approximate cost analysis should also be
presented. The magnetizer will be used in a series production of
magnets.

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Clarification of Question by happykcy-ga on 27 Oct 2002 07:25 PST

There is a condition that the field required for the full saturation
of magnets is about 2.5 x Coercivity. It so happened that for the
strongest Nd-Fe=B magnets it will require a flux density in the air in
order of 4.4T. No iron circuit can carry such a flux. My suggestion is
that you must not carry more than 2.2T in the iron.