Idk, not a welding expert, maybe you're trying to tell me it is a-okay? What about the heat affected zone? What welding process are you thinking?

> Any particular reason the reciprocating action of a normal scroll saw doesn't work for your application?

It works... just not well. Reciprocating is only 50% time efficient (only cutting on the down stroke!), wears out the blades by rubbing on the up stroke, and the very small length wears out quickly so they have to get changed often