TIG-double pass weave weld???

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Can someone tell me or show me (pic) of What a double pass weave weld with a tig welder looks like or is?  I read that it is done on off road tube chassis.
Reply:When you drove your first car/truck did you do it by yourself ?I don't mean to upset anyone, but welding is a trade that needs to be shown to the apprentice from the journeymanThanks
Reply:Yes, I did!!!  I was 14 years old and it was 1970 Chevelle 454 LS6 with a muncie!!! I think I asked the wrong kind of question I honestly thought someone might have a PICTURE they could show me or e-mail me or a link I could follow on the internet. I was just curious. I only have couple of years experience with a tig welder and to me a double pass weave weld sounds like it would be a VERY HOT weld.
Reply:I haven't heard of this exact term, but after looking at a couple of the 4X4 sites you are talking about I found this picture.http://off-roadweb.com/features/0504or_fst02_z.jpg from http://off-roadweb.com/features/0504or_fst/The weave pattern to me looks all the world like the one I have always called "walking the cup".Gaustin has a bit of info on walking the cup here.  I have mostly seen this weave on pipe, but that doesnt mean it aint useful elsewhere.  Take a look and see if you think this fits the description in the 4x4 site.http://www.weldinginspectionsvcs.com/WalkingTheCup.htmLast edited by smithboy; 02-13-2006 at 07:00 AM.Smithboy...if it ain't broke, you ain't tryin'.
Reply:I don't mean to upset anyone, but welding is a trade that needs to be shown to the apprentice from the journeymanThanks
Reply:You'd be less "upsetting" if you'd quit posting this anytime someone asks a question.
Reply:Metal if you know so much then show us pic of your weldsChuckASME Pressure Vessel welder
Reply:My journeymen are books and the internet.  None of my local friends or family have ever done any welding so I have had to teach it all to myself.  I don't have time for classes.  I guess some of us are just naturally talented?I think that third link posted by smithboy is what you are looking for.  The weld is a multiple pass weld and a weave was employed.  You may or may not have to do multiple passes depending on material thickness.  If your tubing is thick, you have two options.  You can run a lot of amps with a big electrode and big filler to make a large bead with huge penetration or you could run less amperage with smaller electrodes and filler with notched joints or fillet joints and add metal a little bit at a time until your weld joint will exceed the strength of the surrounding material.  The multiple pass method keeps the heat to a minimum because it does not take as much heat to form the small bead and the metal is allowed to cool between welds.Last edited by 76GMC1500; 02-14-2006 at 09:39 PM.
Reply:the first guy to weld had to learn by his self  nothing wrong with that jsut might take a little longer is allChuckASME Pressure Vessel welder
Reply:I am by no means saying go out and try to learn yourself.  You NEED resources, but you don't need someone there telling you exactly what to do.  Heck, it took hundreds of thousands of people over 100 years to advance us to our current knowledge of welding.  One person can teach himself how to lay a bead, but  he isn't going to be able to learn about quench hardening, normalizing, carbide precipitation, etc... without at least reading a book.  He doesn't need to have a journeyman but he does need some outside knowledge source.  I had someone teach me how to strike an arc, I have tought myself everything else I know using a book and the internet.
Reply:That photo is cup walking, one run I'd say, unless they'd put a root in.  It doesn't take to long to learn and is the best way to put in an even run with the TIG.It's the way I put in 99% of the roots that I do.Stephen
Reply:its all in the seat timei can tell you everything you need to know (from my viewpoint) in less than 1 hr...but it takes years of seat time to "get it right"you dont get govt certified by being a bozo..its all seat time my friend...zap!
Reply:This is the first pass on a piece of 245SMO pipe.  It's a grade of stainless, very hard and corrosive resistant.  It looks like stainless, but as you can see, doesn't weld as cleanly.  Notice that the weld doesn't fully fill the bevel.  And the second pass filled the bevel just slightly above the surface.
Reply:Nice looking weld there Engloid, do you alway's use bridge tacks?Stephen
Reply:Originally Posted by wirehuntNice looking weld there Engloid, do you alway's use bridge tacks?
Reply:http://www.despair.com/blame.htmlYou should send those folks a copy of this poster...COD, of course.Smithboy...if it ain't broke, you ain't tryin'.
Reply:That was exactly what the situation was.  It took them a while to figure out their plan, as to how WE were wrong.  When they came back with this idea and I asked them about how we were going to find 20ft squares, and deal with this new variable tolerance, the conversation ended rather quickly.In the end, we had to get the pipes straight enough to make the customer happy, but I did manage to keep us off the hotseat for the problems.
Reply:we only did the piping) had some idiots bolting it all up. They'd bolt on a piece, tighten it up and go to the next one..rather than bolt them all up and then go back to tighten them. (inexperience on their part, as they weren't pipefitters.) They then began complaining that stuff wasn't straight, so the engineers had to figure out a way to blame it on us when we showed them that we were within tolerances. well theres part of the problem..you dont go tightening everything up "as you go" per type...get it all in position and then proceed with a tightening SEQUENCE...duh!it is so bad nowadayzzzzzze that nobody has any common sence anymore  ...zap!
Reply:Originally Posted by zapsterwell theres part of the problem..you dont go tightening everything up "as you go" per type...get it all in position and then proceed with a tightening SEQUENCE...duh!it is so bad nowadayzzzzzze that nobody has any common sence anymore  ...zap!
Reply:Originally Posted by EngloidI'm really tired of this business.  I'm tired of knowing I can outwork any three rookies, but still yet, companies will choose one cheap rookie over one skilled guy.  I'm starting a new job monday, and although I will have to start in a welding position, I've already let them know that my goal is not NOT make a living welding.
Reply:Thanks for all the PIC'S and advice guy's.