This video seems to show soldering, not welding.

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I was watching the following video looking for tips on welding fillet welds which give me fits with an oxy torch and I dont do pretty ones with TIG. I can fillet weld with stick but the two torches elude me. Anyway I found the following video on youtube. [ame]http://www.youtube.com/watch?v=uorKaMoox4Q[/ame]At 2.48 he starts a fillet weld to create a lap joint but from what I can tell he is soldering not welding. Correct me if I am wrong but melting the rod like that will not make a great weld because there will be little to no fusion in the joint. This is my problem with TIG and torch, I can do what he does simply but when I try to form a weld pool with the two metals and then add filler rod, I keep either losing the weld pool, creating craters or blowing through the vertical piece. So anyway. Am I right about the vid and does anyone know a good vid on the internet that shows either torch or TIG fillet weld through a lens?Miller Syncrowave 200 Runner (Home)Victor Journeyman Torch Rig (Home)Jet Horizontal and Vertical BandsawMiller Spectrum 375 (Next on the List)
Reply:That is welding Ed Conleyhttp://www.screamingbroccoli.com/MM252MM211 (Sold)Passport Plus & Spool gunLincoln SP135 Plus- (Gone to a good home)Klutch 120v Plasma cutterSO 2020 benderBeer in the fridge
Reply:He is welding.  First he is autogeneously (no filler) welding the flush fitting edges, technically a butt joint.  His torch angle is way to extreme, his arc length is a bit long, and he is not too steady, so the welds are not too great, but they function to hold it together for the subsequent fillet welds he does with filler.  If he held the torch perpendicular, and held a tight arc, and moved at a steady rate, his welds could be narrower and cleaner.The fillets look ok, not great, too concave, and again he is not very steady, and he could fill the ends of the welds better.  He is using what can be called a "lay wire" method, where he simply lays the wire in the joint and melts it into the puddle as he moves.  He may be pushing the wire into the puddle some, hard to tell.  This can be an acceptable technique, versus dipping the filler, provide the welder can see that the root of the fillet is fusing properly, and wire is big enough to make the desired fillet, or the wire can be feed in to make the fillet size.
Reply:ok but that is what sort of confused me, the lay wire thing. How can the base metal melt fast enough for proper fusion with that technique? Furthermore wont he need much more filler than that wire diameter for that fillet? Finally, that wont work very well I dont think if the vertical piece is standing on its edge. I tried that techque and if I get the weld pool on the flat part, I blow through the vertical part. Granted in a lap weld you cant blow through so easy but in a vertical T fillet I have been having massive problems doing just what he showed.Miller Syncrowave 200 Runner (Home)Victor Journeyman Torch Rig (Home)Jet Horizontal and Vertical BandsawMiller Spectrum 375 (Next on the List)
Reply:1st more info is needed to help with your problem. Post up what size steel, filler size, machine settings etc, as well as picts. My 1st thought is you are trying to learn with steel thats too thin, and before you have the basics of puddle control down. If you can not control the puddle, you won't get tig down, period.The steel he used is probably 3/16-1/4" minimum and you shouldn't be blowing holes in that. Even on 1/8" you shouldn't have too much trouble forming a decent puddle and maintaining it to melt filler that way. I tend to find a tiny bit of weave with the torch can help. As soon as I think I'm going to burn thru I'll direct the torch more to the lower plate and take some of the heat off the vertical piece, then bring it back up after it cools a small bit. I'm talking about 1/16" of movement maybe..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan