De-magnetize part after surface grinding with AC tig?

[Jon K]

Hey guys - crazy question. Trying to figure out a quicker easier way to de-magnteize some parts that I had machined. They were machined on a magnetic base table so they have become magnetized. I read that you can de-magnetize with heat (very hot, too hot for these parts), hammering (out, I need to preserve the finish on these), or AC current. The only thing I could think of that had decent AC generation was my TIG welder lol.

Could I hit my TIG welder to these steel pieces just to let it flail the arc around on the non critical surfaces to de-magnetize? Or, does it require the AC magnetic field of an AC source? Bah!

Any ideas?