Quote:
Originally Posted by lendaddy
Yep, I've been telling people this for some time. Straight Argon or 95/5 whatever.......a much flatter/wider bead. You have to throw everything out the window in regards to settings and just learn it but in the end it's much better for thin material work and very "clean". Sure there may be minor strength concessions but as Tim Hancock mentioned this really isn't a concern in this application.
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Hmmm.... I always have a bottle of pure argon on hand connected to my TIG machine as I use my TIG for steel, stainless and aluminum so it has always been easiest to just have one bottle with straight Argon.
When I recently dug my mothballed 110 MIG welder out to do some "production" welding of some 1/16" wall tubing target stands, I was about to haul the old 110 welder to the dump and buy a newer bigger 220 unit when a friend asked me what gas I was using. When I said Argon, he said well there is your problem. So I bought a bottle of 75% Argon/25% Co2 mix (like we use at work for our big mig machines) and my little welder started working like a MIG should again.
Next time I have to weld some "thin" steel that is not "critical" strengthwise, instead of using my TIG, I will try straight Argon vs the Argon/Co2 mix with my MIG.