What happens when you cut a magnet
in half?

You can think of a magnet as a bundle of tiny magnets, called magnetic domains, that are jammed together. Each one reinforces the magnetic fields of the others. Each one has a tiny north and south pole. If you cut one in half, the newly cut faces will become the new north or south poles of the smaller pieces. i hope this helped you out

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.