John Rebel said:DA/O2 welding?
AlphaDogChoppers said:I am not quite sure why everyone thinks TIG is so hard to learn. I found it a LOT easier to learn than stick welding. (Again, that could be because I am well practiced at gas welding.)
i do it every dayBoneDaddy said:7018 on a stainless application? I've gotta see that
bradj said:i do it every day
Local 1032 boilermaker
But what do i know
ill dig up some ss and post pic of the weld it seems to run hot ill include machine settingBoneDaddy said:I wasn't being flippant, I would really like to see that! I didn't know 7018 worked with stainless.
You don't need a tri-mix. Argon with low O2 or CO2 (i.e. somewhere around the 2% range) works quite well. Avesta Welding actually recommends it over the triple mix for 304 and similar steels.BoneDaddy said:7018 on a stainless application? I've gotta see that!
I'd say TIG is the best option up to a certain thickness, adding helium for thicker stuff.
You could also run a MIG with stainless wire but the tri-mix gas is a bit expensive.
mercuno said:7018 will hold fine but is more prone to cracking and proper fusion due to dissimiliar materials
7018 will be the first point of deterioration due to rust
Whatever your opinion may be with your master king dong welding experiences combined---given the current context----why would you even think about it. Run stainless 308 or 309 rods and be done with it.