Achieving X-Ray Quality Root Pass With Tig Welding Dipping Technique!

Hello everyone and welcome to the X3M TIG Channel, hope  everybody is doing good, so for today's video   I'm going to show you guys a root pass for a  x-ray this joint I have to do it's going to be   shot I'm gonna do an x-ray so I got a TEE six inch  with Vitaulic fitting for the root I'm gonna use   130 amps and I'm gonna show you the steps that I'm  using and I'm doing to perform this task so cup   size seven I like seven fits inside perfectly in that six-inch Groove I can slide it I can wiggle I   can walk the cup on the bottom on the top all the  way around whatever so torch 150 amps tig torch   and stick out 1/8 tungsten it's like up  up to 10 mil is always 9 mil as you can see here   usually for reference I like to do put on the top  of the bevel and if the tip of the tungsten is   touching that edge of the bevel that's pretty  much good stick out for me I like to use that   so in this video I'm going to show you guys  proper steps I'm doing as I said   this is for my x-ray so if it works for  me I hope it's gonna work for you as well   as you can see here I'm just gonna go like  15 - 20 degree angle for that filler wire the   way I'm feeding it from the outside nothing  fancy so it's not a back feed it's just it's   going to be like constant feed once I get to  that tack I'm just gonna feather up those   tacks that are not really good quality tacks  so I just put it to keep those two parts together   I but I did some root penetration it's  not that good I'm just gonna remelt them   as I said just gotta keep that rod inside  start from the bottom going up once I get close   to the tack I'm gonna pull it out and finish it  from the outside and just keep the rod connected   guys just keep it in the puddle feed as needed  and just, just removed once you go up that's   what I'm doing I'm gonna show you later so here  for the bottom make a connection between both sides   when it's nice good solid liquid puddle and then  you can feed that rod and just keep it connected   in the puddle be careful with the tip of the tungsten  and you don't want a dip you don't want to touch   that puddle you just gotta have that nice feeling  how much is needed for that for the length   and just stretch that puddle just push it  side to side the edges are opening you can see   you don't have to worry you just kind of  keep it keep it in the middle and there's   the stretch that puddle side to side as you  pretty much always in all of my all my videos uh   on the bottom I'm doing a constant  feed and later on the top I'm doing   dipping technique we're going to talk later  about dipping technique and the pros and cons   okay so you can see here this is the partial root  I have done I always like the big bigger heavier root   especially at the bottom the here  thing usually what is happening   it's like a little pool created here on  the side especially on a thicker root   and usually on the sides like eight to  nine o'clock it's like a little pool created when   the puddle cools down and just sags down  and then create a little poll so we're gonna   grind out from the outside but you're not gonna  feed the rod from outside you want to put it   inside and as you want to continue to the same  thickness of the root you want that root to be   the same size the same shape the same  uniformity so it's just gonna start from the start from the inside feeding that Rod once you  on that continuation once you start preheating   once it starts melting just add rod and just just  keep adding that Rod no need I can't tell you   exactly how much you have to push it's all about  filling this is something that you're gonna   get while more you burn more you learn and for  the tie ins actually it's not a really good tie ins   I said this is just really I feather out those  tacks really thin I'm just gonna remelt them   but usually on the tie ins and I'm gonna show you  later in this video too I just usually always   pause and dipping technique adding rod side  to side and just go over it and continue on   and pretty much now from nine o'clock I  just continue on with a dipping technique   as I said there are lots of reasons why  dipping technique gives you better control   way better control than I can say than  all other welding techniques   heat control, consistency, and efficiency  dipping techniques can help you   to have that consistent weld for bead size and the  shape which is of course important for producing   a strong and reliable weld I'm just going to  continue on now as you can see here there's no you   that weld pool usually what  it's usually what it shows you can see that it's like it's not even you can see  the difference when the guys   usually, stop-start and especially when  you got that poll and its uneven spot I just continue dipping  as you can see side-to-side and it's always for me dipping technique is   it's a basic in tig welding so if you   don't have too much experience and you've got  x-rays to pass try with this if you didn't try   so far as I said the dipping technique is give  you way better control and allow you for precise   adjustments and you can produce consistent and  efficient welds okay now for this side is done okay this is the root so far on this  side as I said I like a nice heavy solid root as   I like to run hot, especially on a hot pass okay  now from the bottom now we go for the bottom on   the the other section same thing preheat and once  you start melting once you get that puddle liquid   added the filler wire and just keep it inside the  puddle and guys try to push that   bead as much as long as you can less stop more  consistent that weld is going to look if you got   more stops it's not going to be even especially  if you don't know how to properly stop-start   for that continuation  you're the one that weld   to be visible when you have a stop starts  just for you I mean you can have visual stop   starts but as long as the weld is good it's okay  but I'm just saying for you you know you wanna   You Wanna Get Better in that okay you  can see here I went to the other side   you can see by the root pattern on two sides  okay now the same thing on this side I'm just   gonna feather out I'm gonna make it really thin  that bridge tack and I'm just gonna continue on so constant feed is  gonna be up to that three o'clock   three o'clock is on this on my side now and then later on I'm just gonna pull it  out slowly and just keep on on with the   dipping technique the good thing with  the dipping technique is you put   like small increments and you also keep  that heat input keep it on a minimum   which can reduce the risk of distortion and  other welding defects of course and    as as I said you actually control the amount with  that small increments that you actually putting in   oh now here for the tie in just I always  pause a little bit add the rod on one side both   sides then pause a little bit and then just go  over with adding Rod also you when you go over the   tack you add Rod is needed I'm just going  to show you here on on the tie-in on the top some guys they like to lay wire it all  depends from the size of the Gap as well   you know you can go hot but it that got some risks you know for the grapes   or if you miss little step you know when you  lay wire and then you wanna speed travel as   fast you can misstep and it's gonna be  shown on your X-ray that's it for the   root pretty much I'm happy with it   it's a good solid root all the way around as I said I like heavier root especially  for the hot pass, I like to run really hot  so this is 130 for the root usually I  go even 140. but I just want to show you   like the proper step is that this is for an x-ray  it's going to be an x-ray for me so if you're not   sure if you deep tungsten couple times you can  take a grinder and lightly just grind all the   way around and run a buffing wheel you want  to have a nice clean root from outside   just if you're not sure so I'm  gonna go 160 for the hot pass   and now one might wonder, if it's going to be suck  back or something, no, this is the reason   why I'm going to show you it also so the   travel speed is a most important thing here and the thickness of your root so if you  got really shallow root and if it's a   really flush with the material  then yeah there's a big possibility of   a suck back you definitely don't  want that and this is the result I like 160 I like hotter, it gives me nice  control I can really melt that 1/8 and that's really nice and as you can see  there's no suck back there's not even a   zero of any inch any millimeter of that  root was being sucked back, that's it for   today's video guys I hope you like it hope  you enjoy it if you got any comments feel free to comment I'm always gonna try to answer, I'm not really active that much on Instagram and Facebook   got lots of messages daily just impossible to   answer all of them, so feel free to comment here   on YouTube and I'll try to answer. Thank you  very much and see you at the next one guys, bye !

Channel: X3M TIG

Views: 32,645

Keywords: Achieving X-Ray Quality Root Pass With Tig Welding Dipping Technique, x3m tig, tig, tig welding, tig welding for beginners, tig welding carbon steel, 5g, gtaw, how to, open butt root, pipe, pipe weld, pipe welding, pipe welding academy, pipe welding school, pipe weldor, pipefitter, pipefitting, root, root pass, test, tips and tricks, weld, weld class, weld tube, welding tips, weldor

Id: eooPg9nXmD0

Length: 11min 46sec (706 seconds)

Published: Sun Mar 12 2023