To roughly summarize the stages:
Casting iron using time honored techniques; Clean up the casts, repack and reheat (this is something to do with a Curie temperature), then subject the ingots to a magnetic field. When cooled these are only weakly magnetic, but primed for the next step; Subject to a strong electric current that aligns the crystal structure.
It looks possible to abbreviate the process - a magnetic field could be applied after the initial casting stage while cooling down. This should be straightforward for rectangular block shapes, and there is the advantage of casts being small, reducing overall equipment overheads.
Magnetizing iron should be done after projection to L1, since it would be expedient to charge them just before fixing, otherwise it will create unnecessary handling problems beforehand during any bulk storage stages.
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