Prototype motos laminates seem to be laser , EDM , or chemical etched Silicon is added to the steel to lower electrical conductivity ( about 3 percent I think ) also the steel has a nonconductive coating on it ( organic and inorganic coatings are used .My first choice would be Oxy-fule , second plasma , and tied for last place EDM or chemical etch.
Any thoughts on the matter would be appreciated . Sincerely Robert
P.S. I would also like to hear any out of the box ideas .