When you say 'Box', will it have 6 sides welded (i.e. is it a sealed cube?)
The most important thing to reduce distortion is to tack it together initially, by getting good fit-up and stitching it together with plenty of distributed tacks. Then go about welding all of the sides, again with staggered welds.
if it's sealed you'll have to take some consideration for internal pressure issues.
Others will chime in with great ideas too, hopefully.
Trev
EWM Phonenix 355 Pulse MIG set mainly for Aluminum, CIGWeld 300Amp AC/DC TIG, TRANSMIG S3C 300 Amp MIG, etc, etc
I wouldn't think 3/8 would warp much as long as you don't weld too much at a time.
Use plenty of tacks, and there is plenty of real estate on that project to skip around to keep too much heat from building up.
Welcome. I agree with using plenty of tacks and staggering your welds. I'd just like to add my emphasis to the importance of proper fit up. In my experience the fit up and joint prep was the key to a good result. Good luck and let us know how it turns out.
We are not lawyers nor physicians, but welders do it in all positions!
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Well, it`s all welded and there is almost no warpage. I welded the corners first and then welded the center part of the longer side then moved to the shorter side. I welded those welds from the center out to the corners and moved diagonally for the next weld.
Then flip it over, repeat and eventually weld the rest on the longer side moving to the corners. That`s all folks
It`s just metal poured over from the heat. It was grinded out and welded over with no problem whatsoever. The part under the bulge on the left is actually millscale. Should of grinded it before welding and use 3/32" instead of 1/8" but wanted to weld a bit hotter on the corners. A crack that size wouldn`t of disappear after using flap disk on it just to deburr.
Don't take this crack question as your project is bad. Looks very good to me. Just thought that this looks like a crack. Pic is blurry but this is what I was referring to.
-Jonathan
I never thought of it that way. Back to the crack it is actually a millscale, but the picture is not of good quality so maybe that`s why it looks like it. As I said earlier, crack like that doesn`t disappear after using flap disc on it just for deburring the edge. The tie in wasn`t perfect so there was a little undercut on the sides but nothing major since the weld is already overdone for it`s application.
I can`t remember how many times I have seen fences welded outside with a tig procedure. People pay lots of money for sth that is not really safe to use.
I remember one time when one of the construction sites supervisor was explaining to me how he sent some welder off the site because he was welding ss pipes with stick - outside. He said then we did it the proper way - with tig, of course without any wind protection.
More and more lately ive been noticing failed welds. Almost always just beside the weld, usually looks like different thickness material, most of the time it's stainless, sometimes aluminum.
