that migging tube!

[morgansofas]

Hi everyone.
I'm new to welding and I have to make a chair frame. I'm using 5/8" o/d ERW mild steel tubing, which I've normalized, couple of bends in a hydrualic bender, then joined using 90 degree 'birds mouth' joins (sounds like I know what I'm talking about, but I don't!).

Had a practice, but i can't get a nice weld- there's so much of it building up around the joint. Any practical advice appreciated.

 

[Toyoden]

Chair

hi Morgan, am a newbie, until someone of far greater experience responds, can but offer my advice , anyway, Basics, How clean is the metal?, has to be clean otherwise no penetration, also if getting large build welds, thats to do with speed you are welding at, too slow, lge build, also settings, wire feed too fast, all depends on what welder you are using, stick, Mig?, need to know b4 anyone can give practical advice. Practice on scrap that is of same dimensions etc, until you get that nice weld, remembering heat, too much at once and it will pull out of shape. when you inform us of what welder you are using, then the good advice will flow.
Cheers

 

[RobIsaacson]

Hi
As the old saying goes; a picture speaks a thousand words.
Have you got anything you could post to give us a better idea of where the problem lies?
I'm no expert either but someone will ask the question sooner or later.
Regards
Rob

 

[Hitch]

A pic would make it far easier to diagnose.

When you codsmouth small tube together, it can often be quite a challenge to get a neat, even weld all around beceause of the transition between the fillet and butt weld.

If you have a large weld on the inside, try turning you heat up a shade.
And try starting at the top on the butt, and going around, forming a dowhand weld inside.