Interesting TIG tubing welding video's

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Here are a couple videos I found on the webernet they are kinda interesting. For one I really like the purge set-up he's using it looks like a much better, and absolute way of purging a piece of pipe or tubing instead of doing the old tape method, lol. I like how the fitting and both dams are all in one piece.But also he doesn't use any filler, and a coupe of time he removed his cup while the metal was still red hot as well. But if you watch the last video you can see the perfect penetration on the inside of the tubing, I know its only 16 gauge but still kinda cool to see what other folks are doing in other parts of the world.Comments?
Reply:Pretty cool stuff. Where can I find those clamps at? I like those!Which SR20 you have and in what car Steve? (DE) (DET)I have one in my 510, well almost in!Scott.
Reply:Originally Posted by Scotty 510Pretty cool stuff. Where can I find those clamps at? I like those!Which SR20 you have and in what car Steve? (DE) (DET)I have one in my 510, well almost in!Scott.
Reply:That is really not how you do that. We use stainless steel hose clamps, with a few 5/16" or 3/8" holes punched through them. To hold and tack with. Instead of that kind of awkward clamp. The hose clamp automatically evens out the surface height. And will work very close to bends. All that around and around with the torch is actually burning good stainless steel. And dumping a lot of surface oxidation into the weld. He went in two directions with the weld, on the same pipe, a normal no, no. It can cause some strange stresses. But hey, that is his way to do it. On large pipe I use, band iron, welded to a hose clamp. Check out the material grabbers hanging on the "I" beam.       Sincerely,             William McCormick
Reply:That guy better be on break, working on his bike! Sheeeshhh! lol!
Reply:Originally Posted by William McCormick JrThat is really not how you do that. We use stainless steel hose clamps, with a few 5/16" or 3/8" holes punched through them. To hold and tack with. Instead of that kind of awkward clamp. The hose clamp automatically evens out the surface height. And will work very close to bends. All that around and around with the torch is actually burning good stainless steel. And dumping a lot of surface oxidation into the weld. He went in two directions with the weld, on the same pipe, a normal no, no. It can cause some strange stresses. But hey, that is his way to do it.
Reply:Originally Posted by William McCormick JrThat is really not how you do that. We use stainless steel hose clamps, with a few 5/16" or 3/8" holes punched through them. To hold and tack with. Instead of that kind of awkward clamp. The hose clamp automatically evens out the surface height. And will work very close to bends. All that around and around with the torch is actually burning good stainless steel. And dumping a lot of surface oxidation into the weld. He went in two directions with the weld, on the same pipe, a normal no, no. It can cause some strange stresses. But hey, that is his way to do it.
Reply:That tube's what, about 2.5 maybe 3" OD max? Not quick, neat or clean and what looks like several pinholesFor one I really like the purge set-up he's using it looks like a much better, and absolute way of purging a piece of pipe or tubing instead of doing the old tape method, lol. I like how the fitting and both dams are all in one piece
Reply:The only thing I would agree with Mr.Missinformation(god and welding web forgive me) on is surface oxidization. Shouldnt take 2 minutes to weld half way around a piece of friggin 2 in tubing. No way he didnt cook the crap out of the that thing. The root looks snakey and wider than hell.
Reply:Root looks purdy to me, maybe im crazy. But the top looks concave (and why he needs filler)maybe one more pass with filler since the roots in there already. But he's got some steady hands there and he definitely got full pen with no joint prep whatsoever, hell he even cut the damn thing with a hacksaw, lolz.
Reply:I agree with you on the steady hands. No way could I keep up that motion all day. Ha-ha. But what I see with a lot of foreign workers is that they do something with amazing precision, accuracy and repeatability, but they honestly do not even know why they are doing it. Or they do it in the wrong place or on the wrong part. Some of the things they learn they learn from guys that are not trying to help them into their shoes. Rather they learn from people trying to add to the jobs complexity, for job security. This is even something I have run across in the shop with foreign guys amongst themselves.I was just saying I have done a lot of thin wall tube in my life, all my adult life, and we never do anything like that. I used to weld double wall, Stainless Steel, marine race engine exhaust pipes that lasted for many years many races. They outlasted all the competitions pipes. And some of them were 0.040 wall pipes. If you wanted to really improve quality, to Aero Space quality you have to use a giant cup or have someone follow you with a trailing cup. Then you could leave a perfectly bright weld behind you. But with the backup gas, it is hard to mess up a weld totally.        Sincerely,             William McCormick
Reply:Originally Posted by sn0border88I wish there could be a disclaimer added to all of your posts, stating that the following "information"  is at the least going to be contradictory to most of the generally accepted practices in the welding industry and more likely misleading or simply incorrect.  I wonder how you seem to have all of this knowledge that isnt found in textbooks, pointed out in codes or even recognized by anyone else I have ever met.Welding .065 stainless like that is very, very common and is the preferred method for piping systems in some of the most demanding applications (chemical/pharmaceutical).  Do you have any evidence to support the claims of surface oxidization or "strange stresses"  ?  To the OP, be aware that those purge dams, clamps, and that method isnt respective to a certain area of the world.  I have been doing that same work for the past week at a job in PA.  They are indeed intresting however, I wasnt aware that anyone still wore glasses like that.  Oh, and billy.... Try setting a root gap with your band clamp.  I happen to enjoy those awkward pipe clamps because they work very well, and can account for variances in the pipe.
Reply:He pulled that pipe in on itself, that is something that happens when you take your time around a pipe like that in one pass. That is why there is a large raised puddle inside the pipe, and not much depression outside.The pipe is shorter then when he started. By a substantial amount. But you can get similar or better results in my opinion without moving the torch side to side. You might also want to get a micrometer and measure the thickness of the wall right next to his weld. Because the pipe expands in diameter as you weld it slowly. Because you are pulling it into itself with the power of the weld. So when he washes in some material by going left and right of the weld, he is going to thin the wall thickness right next to the weld. That is one of the main reasons you are supposed to go in one direction around a pipe. You bring the the massive amounts of stress all the way around full circle to the starting point. If you switch up direction, during a weld, you create stress. That was one of the first basic lessons I got in welding pipe. If I did that same weld, I would have a slightly raised weld. And a slightly expanded pipe.  Because I would also pull the pipe into itself, but I would not wash some of the pipes wall thickness into the weld. If I get a chance I will do a pass around a similar stainless steel pipe or tube. And you can see the difference.        Sincerely,             William McCormick
Reply:It is amazing what you can do with a little patience and a lot of practice.  I dont think the issue here is really right versus wrong, but the ability that was demonstrated by the dude doing the weld.  I for one know I do not have hands that steady, I can do about 5 minutes before I start to jiggle like a drunk.  Really good technique, repeatable, consistent, good result inside and out, so whats the problem?  The pipe is joined and I bet it wont leak and is strong enough for the application.  Is it perfect?, no but most of my stuff aint neither.  Good find....I'm spending my Kids inheritance, I dont like him that much anyway!!!!!!Enuff tools to do the job, enough sense to use em.Anybody got a spare set of kidneys?  Trade?
Reply:I never knocked the guy and his amazing journey to find all that stuff. But we have been doing that type of welding for over 50 years around here. And we know exactly what is taking place. I know exactly what he is doing. We cut this stuff apart. We measure how much the pipe expands. And I am saying I would not teach my son to weld like that. I thought it was cool myself. It just goes against some basics of welding I was taught and trust from actually testing them.        Sincerely,             William McCormick
Reply:as has been mentioned, the travel speed   is soooooo slowwww..
Reply:Here is something I just threw together. I had nothing really for this size tubing to seal it. This was the only tubing I could find with a very thin wall. It is about 0.040 tubing.I just used a piece of welding rod and two plates with holes in them, a piece or stainless welding wire and vise grips to hold the end plates on. Ha-ha. But they came out Ok. It is cool how you get the stack of dimes inside the pipe when you use backup gas. I just wanted individuals to see that with proper gas coverage and a good technique you can get a very high quality weld with less work and it takes less time. There is no filler wire added to this. The tungsten is a 0.040 Tungsten polished to a mirror finish. 13 cubic feet an hour through a large gas lens. Helium backup gas. About three cubic feet an hour seeping through Havoc material seals under the end plates. I walked a little left and right on the other side, but all in all a pretty good weld. I haven't done this in thirty years. I had to use an auto darkening helmet, I hate them but they go down to nine. I just could not see it with a ten in my standard helmet. And I did not have a nine.        Sincerely,             William McCormick
Reply:Looks mighty good there William. Did you do it in the 6G? Just giving ya chit, lol. That was no filler just pedal?
Reply:Originally Posted by SR20steveLooks mighty good there William. Did you do it in the 6G? Just giving ya chit, lol. That was no filler just pedal?
Reply:You would be surprised how easy it is to do that compared to stick or MIG welding. This is one of the first kind of welds I did when I learned to weld. It makes you feel good. Because you have no idea of what you are doing, yet it comes out almost perfect. Setup is the key to nice easy welds. Zap says that in just about every post, so do most of the other welders. But a lot of people do not want to hear that. They want to just pick up the torch and make magic. There is no magic. My father is a very good teacher, he gave me confidence early on, by letting me weld really nicely, ideally setup stuff. It made me feel like a pro. I knew instantly I could do it like a pro. Of course he also knuckled me on my head about ten million times. Not sure if my head or his knuckles are harder. Ha-ha. Not saying I didn't deserve them though. And in those days it was almost an act of love. Or a way to say "that was very funny and disrespectful", "here you go have a couple of these". Ha-ha.        Sincerely,             William McCormick