MIG is not normally recomended for airframe construction but many people do
it. I have TIG and O&A welded and prefer TIG but hard to get into clusters
with the TIG torch. See news:sci.engr.joining.welding for lots of good
(factual) helpfull information.

Jim


"Steve Thomas" wrote in message
nk.net...
Has anyone on this list ever welded a thinwall 4130 frame with a MIG
welder?

What is a good source of 4130 seamless and welded seam tubing?

Thanks,

--
Have a good one!

Steve
www.americanspiritppc.com