tig pipe

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i dont for one moment claim to be a tig hand, where possible i try to avoid itbut the nature of my job dictates its use from time to time.heres the way i go about doing a 2ins mild steel butt.pic1 bridge tacks,these leave the root gap untouched.pic2 notice slight concave look to this run the filler metal must be going somewhere inside hopefully.pic3 i personally like to grind the root any porosity will show much clearer and it gives a slick surface for the cap.pic4 cap,this is just my method larger pipe will require a larger gap.the power was between 90 and 100 amps gap 12 gauge.slight misalignment my fault not for production.pipefitterLast edited by ZTFab; 06-28-2007 at 01:06 AM.
Reply:As always nice welding, pipefitter.  Most of the pipe I work with is 6" or 8" .120 wall used in agricultural irrigations.  Usually runs about a 120psi max, and I usually only run two passes run on it, but its not quite as critical as the pipe you deal with.  Sometimes I will weld it with the tig just to keep in practice, and I do it just the same way you did there.  I always enjoy seeing your work.  ~JacksonI'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:thanks jackson,i appreciate you taking a look.heres a cut out of that butt ,the fitter i work with didnt have the correct size tank cutter so there was too large a gap for stick,thats the beauty of tig.did this flange with 2 runs 2.5 filler 90 amps.alan.Last edited by ZTFab; 06-28-2007 at 01:08 AM.
Reply:I have a friend that's favorite moto is if you can walk across then you can weld across is too, lol    Very nice work as usual.  ~JacksonI'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:now and again a customer requires tig root and filler,the cap  is our discretion.did this 6ins butt today.the gap was 4mm[8gauge]2.5 filler wire 12gauge.120 amps root run,150amps filler.i capped with a 3.25 fox sum bohler rod 6013 105 amps. Attached Images
Reply:Looks OK to me..From what I can make out anyway....You need a better camera.. ...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Your welding is actually .... Pretty .... very nice It's your photographic skills that need work.   grin . ..Washman
Reply:The pictures look better than the other set and the welding is great.Nice job.Favorite right now is a Miller Syncro 200.Tons of tools and I blame at least one of them when things don't go right.
Reply:looks good to me.......  i agree on the camera part   lol63' Lincoln SA200 2008 miller trailblazer 302fibre-metal pipelinermiller camo BWEand all the guns and ammo a growin boy needs
Reply:Always is nice to see good examples of good work.  Look for the portrait option on your camera, it will allow you to take pictures up close and still have excellent focus.  Sometimes its a picture of a flower or can be called telemacro on Sony cameras. Anyways depending on your zoom or magnifier will dictate how close you can be to an object to photo. The higher the optical zoom the further you have to be from the subject.  Portrait of telephoto allows you to cut this distance in half.  For the racing handlebars on one of my drag sleds ( 3/4"- 7/8" tubing 4130) do I have to leave a gap ? And is the cap pass required?  Sled runs 8.7's at 150+ mph in the quater.  I haven't done this on the other 2 I did this year. Just beveled 1st pas and filler.   TIA500 AMP AIRCO TIG LINCOLN PT185 100% DC @ 128 AMP-WTFSPEED GLASS 9002X MILLER THUNDERBOLT 225HOBBIEST TURNED WELDING JUNKIE8 2ND FIRECAT - SNOWMOBILE RACE CHASSIS FABRICATORPRIDE IS WHAT MAKES YOUR WORK SO GOOD
Reply:For the racing handlebars on one of my drag sleds ( 3/4"- 7/8" tubing 4130) do I have to leave a gap ? And is the cap pass required? Sled runs 8.7's at 150+ mph in the quater. I haven't done this on the other 2 I did this year. Just beveled 1st pas and filler. TIA
Reply:Originally Posted by PLUMMERAlways is nice to see good examples of good work.  Look for the portrait option on your camera, it will allow you to take pictures up close and still have excellent focus.  Sometimes its a picture of a flower or can be called telemacro on Sony cameras. Anyways depending on your zoom or magnifier will dictate how close you can be to an object to photo. The higher the optical zoom the further you have to be from the subject.  Portrait of telephoto allows you to cut this distance in half.  For the racing handlebars on one of my drag sleds ( 3/4"- 7/8" tubing 4130) do I have to leave a gap ? And is the cap pass required?  Sled runs 8.7's at 150+ mph in the quater.  I haven't done this on the other 2 I did this year. Just beveled 1st pas and filler.   TIA
Reply:From what I see in your caps, you have no qualms about making weave beads, eh? City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:you were right about the pictures,best i could do im afraid. anyhow i hope these make up some. pipefitter.
Reply:thats some nice welding and the new pix's are better ChuckASME Pressure Vessel welder
Reply:Gorgeous!David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:awesome welding & pics! (thank god for that, my eyes were starting to hurt looking at the 1st ones...)
Reply:thanks again lads.heres how i tackle a 3 inch butt,look in the first run for a concave look.as you have been adding filler at a steady speed the metal must be going into  the inside,i clean the lot to check for porosity,and this helps the cap flow slick as snot. pipefitter[ATTACH]12538[/ATTACH Attached ImagesLast edited by pipe fitter; 09-12-2007 at 05:31 PM.