Welding into a Corner

[backpurge]

Don't ever start in a corner as has been said, always try to run into then out of the corner, standard practice to avoid crater in the corner of the joint

 

[monkeh]

Kind of off topic but how do you do this kind of joint with a tig welder. When i made a new work bench a few months ago i had a hard time getting into the corners with the torch and feeding the rod in. I think in the end i just used a 4 cup, gas lens, big stick out and a lay wire technique.

 

[oilcooled :)]

I am having the same problem and came across this post.
I can't see how it is possible to drag a rod into a corner and back out again, keeping the angles correct.
Can anyone point me to a video on YouTube showing the correct technique?

You can bend the boundary’s of rod angles a hell of a lot more that you think. Trick is weld hot enough with a thight arc and don’t lay too much metal down in one pass . Start at the edge ,weld into the corner at which point push the rod into the work piece which will help you to roll your wrist around the corner and continue. Sometimes it’s the plant that’s the issue you can get arc blow with dc and may need ac welder. Not vital for the DIYer

 

[zeppelin builder]

Don't ever start in a corner as has been said, always try to run into then out of the corner, standard practice to avoid crater in the corner of the joint

Why ?
As you weld toward and into where you previously started ie corner you burn out any bad bits as you link up. pause for a second and that takes care of the crater as you stop

 

[oilcooled :)]

Why ?
As you weld toward and into where you previously started ie corner you burn out any bad bits as you link up. pause for a second and that takes care of the crater as you stop

You don’t start in a corner when your stick welding because the second you start your rod your creating slag and spatter and your rod is cold and the steel is probably cold and there’s a chance of arc blow that’s a pure recipey for a mess. When welding with stick your rod is warming up that first second when u long arc and away you go with a 6013, you don’t want to be doing that In a corner.

 

[ian_in_the_midlands]

As a very novice welder, would I be safer welding from the inside out, but leaving a space between the corner and the start of the weld? The doing the other side the same way?
The corner would not be welded, but would this significantly weaken the joint?
I don't know if it makes a difference, but for this job I will be using 7018.

 

[Arclikeharrypotter]

Depends on what exactly your welding I suppose. If it's piece of say 50mm angle them really you can do the whole thing in 1 pass. If it's something bigger then personally I'd always try my best to avoid starting from in a corner.

 

[zeppelin builder]

You don’t start in a corner when your stick welding because the second you start your rod your creating slag and spatter and your rod is cold and the steel is probably cold and there’s a chance of arc blow that’s a pure recipey for a mess. When welding with stick your rod is warming up that first second when u long arc and away you go with a 6013, you don’t want to be doing

 

[zeppelin builder]

You don’t start in a corner when your stick welding because the second you start your rod your creating slag and spatter and your rod is cold and the steel is probably cold and there’s a chance of arc blow that’s a pure recipey for a mess. When welding with stick your rod is warming up that first second when u long arc and away you go with a 6013, you don’t want to be doing that In a corner.

Works ok north of scotch corner