no worries. people who want to learn something will click the links as well.

for aligning pipes accurately just get a couple of pieces of angle iron, weld them on the insides of a c-clamp and bingo. just insert two pipe ends, close snug and tack weld.

 

for the benefit of everyone reading this thread, DOWNLOAD THE FABRICATION TORRENTS IN THE STICKY ABOVE!!!!

the videos are amazing. i could watch the working with tubing one every day!

im gonna go take a hose clamp and cut a window out of it :-) tig tack welding tool FTW


-Luke

 

o

 

nice job

a few things handy to know

argon is heavier than air

you can literally fill a shoe box full of it and that makes for a makeshift purge chamber for items not as easy to jig up like shown above

Reynolds Wrap Extra Heavy is also very handy for purge welding irregular items

you can actually just fill a shoe box, or your grounded item wrapped in foil, with argon from your torch head and if your setup is good

the lack of constant purge flow won't hurt you one bit

Solar-Flux can be used on the backsides of stainless welds for good results. It is the gray powder you mix with methanol obtained from the Co-op or Farmers Supply place close to you. The Solar-Flux is available online and I've tried to come up with a cheap subsitution to that powder, it's just too damned expensive

like around 50 bucks for a quart can

anyone else have a home brew solution for flux powder which will work when purging just isn't possible or too difficult?

 

for 90 thou wall

you can really do a flawless autogenous root face pass, having 100% penetration, with no gap between the pipes

makes it much easier and provides more consisitent results

one pipe with a half thickness bevel is nice but not really required in the real world

then come in and make a final fill pass with some 1/16" fill rod

your temp is high, as indicated by the gray color on the weld, bead formation is fair but looks a bit like the speed is slow in some places and extremely fast in others

you should catch on quickly