how did he weld here?

[handyman2020]

I am trying to figure out how this person welded here at this spot as I am trying to make exact same thing and same size as his. I tried and ended up using half inch thick mess to cover that spot.

Could it be that he used
- Very long extending rod out of cup regardless of cup size?
- some type of cup which I dont know about?

how to weld at such spot?

see the red marked area below, how did he weld there?




below is second image, which shows another view of the same area which I am talking about







Thanks

 

[welder4956]

Yes, long stickout of the tungsten and higher gas flow rates. The valley between the parts being welded also helps trap the shielding gas to protect the tungsten and weld puddle. Start the bead in the deepest part of the valley and weld outward on each side.

 

[GaryM909]

I have done the same as welder4956 and it works well. Also I have used longer cups. You really have to play with your gas flow though.

 

[handyman2020]

Yes, long stickout of the tungsten and higher gas flow rates. The valley between the parts being welded also helps trap the shielding gas to protect the tungsten and weld puddle. Start the bead in the deepest part of the valley and weld outward on each side.

I have done the same as welder4956 and it works well. Also I have used longer cups. You really have to play with your gas flow though.

Thanks so much, I have that longer cup already, didnt know that it could be used here as well

 

[36truck]

Another thing I see here is a very experienced welder. Welding like that has a lot of time in the seat.

 

[T444e]

Good weldors can make quality welds in very difficult spots. I have heard of steamfitters making code welds on the back side of pipe, against the wall with bent electrode and a mirror.

 

[ArcIndWeld]

I am trying to figure out how this person welded here at this spot as I am trying to make exact same thing and same size as his. I tried and ended up using half inch thick mess to cover that spot.

Could it be that he used
- Very long extending rod out of cup regardless of cup size?
- some type of cup which I dont know about?

how to weld at such spot?

see the red marked area below, how did he weld there?




below is second image, which shows another view of the same area which I am talking about







Thanks

I don't have any of those super long cups myself. In this instance i'd run a large cup like a Furick *** thats made of glass to get a better viewing angle but also large enough to run a long stickout. In some real tight circumstances Blue Demon makes bendable tungstens.

 

[iagsxr]

I feel like you could assemble those in a different order than what he shows in the video to make welding easier.

Unless there's some super space constraint there's no reason for the tubes on that X pipe to end up that close together.

 

[handyman2020]

I don't have any of those super long cups myself. In this instance i'd run a large cup like a Furick *** thats made of glass to get a better viewing angle but also large enough to run a long stickout. In some real tight circumstances Blue Demon makes bendable tungstens.

yes, that would be nice, bendable tungsten, I am looking about them now

 

[handyman2020]

Another thing I see here is a very experienced welder. Welding like that has a lot of time in the seat.

I thought it was a simple and small project,

 

[Lumpy102]

Good weldors can make quality welds in very difficult spots. I have heard of steamfitters making code welds on the back side of pipe, against the wall with bent electrode and a mirror.

I watched a couple of shifts of very good tig welders weld on the backside of a large heat exchanger manifold/collector through a cutout in the housing working on scaffold in an ethanol plant, with mirrors. Exceedingly difficult positioning, impressive skills!

 

[joe49]

How about doing that weld first, then add the other pieces.

 

[TheEquineFencer]

Good weldors can make quality welds in very difficult spots. I have heard of steamfitters making code welds on the back side of pipe, against the wall with bent electrode and a mirror.

It's funny you mentioned that. There's an old timer, 80+ years old, not far from me, he's close to 5ft tall, a little guy. He's a retired boiler and steam fitter. He'd told me stories of "back in the day" when he'd welded things like that. Because of his small stature, he'd get the jobs in tight places. I used to think he was pulling my chain until a mutual friend showed me something he welded up for him years ago. The guy used a bit of modern technology. He had our friend send a live feed from his phone as he started welding to his iPad as he was welding in a spot he couldn't see. I figure if he can do that, welding with a mirror in reverse was a breeze.

 

[OccupantRJ]

In both welding and machining the sequence of operations can determine the difficulty, tooling required, and the end result.

 

[Bert_]

No idea about tig but I have bent welding rod a few times to get in tight spaces. Kind of a pain.