Thanks to all who answered. And MagMike is probably right, the laminated structure I can see is probably packaging around the actual magnet. I couldn't tell for sure without destroying it, but I think the recharging will work right through the laminations if I can make the right fixture. I...
I am trying to recharge or renew the magnetic strength of a magneto rotor. The magnet is made up a stack of thin metal plates laminated together and then riveted into the middle of a shaft which allows it to rotate. The usual way to do this seems to be to expose it to very strong magnetism...
