Tig welding sheet metal with 50amps??

[killdozerd11]

Why do you want to tig sheet steel if you have a mig which is far better to do sheet metal with ??

I love doing DC tig and i can do AC too i have welded the soda can stack but i like doing stainless better
Though after going to the miller under the hood event and running the dynasty 350 was pure joy compared to the old syncrowave i ran in college

Don't run an inverter type welder from a generator that does not have a stable voltage supply output it will damage the welder

If your going to get a portable welder there are several that can run stick / tig like the miller bobcat or the trailblazer
But the tier 4 engine laws are going into effect soon and the prices on portables are going way up

I run a TrailBlazer 302 airpak but i don't have tig capabilities ...never needed it
I run stick or my 12 rc suitcase with the 300 Q gun that gives me Mig and flux core self shield or dual shield capabilities

And if i wanted to i could use a spool gun or push/pull gun for aluminum but doing equipment repair i have never needed it

 

[November X-ray]

Why do you want to tig sheet steel if you have a mig which is far better to do sheet metal with ??

It really depends on what the need is. I sometimes build fuel tanks out of 16 gauge cold roll sheet and would much rather TIG weld it then MIG it, simply a matter of preference but the TIG is so much cleaner and more precise with no clean up afterwards. Just a little abrasive blasting, then primer and top coat! I should mention that this is done with no filler metal, merely align the two sheared edges accurately and walk down the seam. I have yet to have one of these leak when done this way but the very first one I MIG welded leaked in a couple of spots.

 

[killdozerd11]

oh gas tanks well yes then by all means tig it so much better that way

I thought you were talking sheet metal as in car body sheet metal stuff like that

Though you can mig gas tanks and not get leaks but it takes practice like doing several and getting your settings just right and your fit up has to be real good also

When i first went to college i thought this is going to be easy i already weld real good but i went there to learn
But we had guys come with the idea there is nothing you can teach me also...So my professor had this little test

6 1/4 by 6" by 6" plates and a 1" pipe nipple

Weld the plates in a box cut a hole in the center of the top plate and weld the pipe nipple in the hole...simple....weld it with 1/8 6010 rod...ok

Then fill that when done with soluble oil water mix attach the hand pump and pressurize

Humm looks like a lawn sprinkler ...are you sure there's nothing you can learn here

My second one held with no leaks and i learned a lot in smaw then tig when you could do the soda can stack you could be considered a tig welder for aluminum

Next class was stainless were you learned about heat input and gas backing real quick to get that nice even color to your weld and no crust on the back

But that's just shop time you still have all that book learning to do and weld symbols But it's things you need to know

 

[Jim_cellarshop]

Hey sorry I have been sick for a few days.. Thanks for all the info the main reason i was looking at a gen/welder was that I need to buy a generator (approved by the big boss) and I thought that I could combine the costs & get a TIG welder in the process. I do not need portable TIG welding, I have not done stick in years. I used ox/ac before I moved, but now that my shop is in the basement I am down to just my Hobart 140 mig. I want to be able to weld alloy pieces up to 1/4" but also weld sheet metal tabs, about 18ga (maybe even stainless) to the inside of 10ga sheet metal electronic cabinets and 10ga stainless wire into 3/8" welded rings. I looked at the Hobart 10k, it's a bit big for the space I have & I could not find where the TIG access was short of just plugging in a regular TIG unit to the gen. I think I will most likely just buy a generator that my wife can handle & then look for a used TIG machine when I have more funds. I also am going to practice MIG welding more, I am pretty much a rank amateur so I may be able to do some of the things I want w/ more practice & education. Thanks a lot for your help!