Hello everyone and welcome to the X3M TIG Channel I hope
everybody is doing well, so for today's video I'm gonna show you guys how to do root
pass on a horizontal weld horizontal joint I'm gonna show you a technique and we're
going to talk a little bit about the prep as you know usually the pipe comes
with the land or any manufacturer and already got land in this case it's almost 1/8 as you can see I'm using 1/8 TIG rod for this root so definitely we have to remove
that land and we're gonna do that's what I will always do it's a feather edge so the bevel
is 30 it always ranges from 30 to 45 degrees bevel angle this one is 37.5 that's pretty much
regular in pipe fitting for prepping the pipe that's what it usually is 37.5 so for the Gap Rod
it's a 5/32 this is what I'm aiming for The Gap I like to have 5/32 Gap pretty much on my weld
sometimes I even go even 3/16 for horizontal but no need, in this case, this is only a demo just
to show you a technique how to do a horizontal root pass as you can see as long as I can wiggle
that 1/8 rod that's a good gap for me now I'm going to do a three root tacks
this is going to be the first one as you can see here I'm using a cup size 8. and I'm
gonna show an example how to do a root tack okay for the root tack is the 115
amps usually I don't go that that low with the amps I'm always around
130-140 range especially on a horizontal weld but this is only for educational purposes so
150 I'm gonna go a little bit slow low and slow just to show you guys how to do it as you can
see the connection I did top bottom connect and try to keep it connect
to that rod in the middle root as they gonna be the
part of the root later okay this is the root from the outside and this is
what the inside looks good that's exactly what I'm aiming for thickness is nice and now I'm gonna
do the other one it's gonna be on the six side six o'clock side so as you can see here it's
four, four and a half almost five, five mil gap and I've tried to do a one-inch in length
as long as they're one inch in length I'm I'm hoping the gap I'm I make is gonna stay the
same as you know the shrinks a lot pulls a lot and that's why I'm hoping it's gonna stay the same
that's why I go with the one inch root tacks and it's easier to know if you got a longer tack once
when you do root it's going to be easier to you know to be part of the root
to be integrated and it's going to be less visible that's what I'm that's what
I'm what I'm aiming for as you can see here the rod
I'm keeping it's pretty much 50 \50. on the edge uh in and out and pushing
that rod in stretching that puddle up and down okay this is the second one now we're gonna see which side is the wider on three or nine
o'clock okay so here on the nine o'clock I got them a little bit less than four mil and
let's check here on the three and three o'clock yeah it's, it's almost five mil so on the
Wider side this is where I'm gonna put tack so this is the third one nothing fancy, you know there's a couple different tacks you can put the bridge
tacks you know standard tack or using a bridge rod but for this, I'm gonna go with the root tacks
on a horizontal, I think that it's very it's way better to have a root, unless you do
stainless of course then you want to do bridge tacks but for carbon pipe definitely
you can go with the root tacks okay so I got all three in so we got um 12, 3 and 9 o'clock okay now I'm gonna grind the both
sides of each tack so we're gonna have entry and exit point , this is going to be the start point
as well on one side there's that's I'm gonna start from the tack like from half of the
tack, I'm gonna start and I'm gonna start doing root on this side as you can see the rod
gonna be inside and then just gonna keep that Rod inside and stretch that puddle so I'm
going to switch to cup size 6 it's a cup size six fits perfectly in the in that bevel so I can
just slide, just wiggle that cup inside and it's gonna be easier to have control over that
over that puddle, if you go with the cup size 8 it's not fit perfectly inside the bevel so any
obstacles outside on a surface you might know interrupt you or slow you down or whatever you
know you can have missteps or something so the stick out, as I said 1/8, 2 percent
Thoriated the Tungsten for the stick at usually the reference is on the inside that edge or
usually, it's up to nine mils, nine to ten mil it's gonna be 9 mil for you it might work
a little bit differently you can go even with the last stick out you can go five, six mil
depends what's , what works for you the best amps 136, 136 amps for this root usually
I go even with the higher amps for this root 140- 150 but 136 I think it's , this is good
even if you try with these amps I think it should it should be good for you definitely guys
practice you always use amps how much you can handle how much you can follow you know you
gotta adjust your travel speed how much you can feed in the same
time and manipulate that puddle the main thing is that just to have control as
you can see here even if you lose a connection if it disconnects just aim that tungsten on the
top or the bottom or you can do like the same time you know up and down up and down until you reconnect
again and then you keep stretching that puddle there are a couple different techniques you can
use on a horizontal this is the I'll say the easiest one just to keep it in the middle keep
it connected you know you want to have that nice liquid puddle , don't rush too much forward
that's how you lose connection as you can see here a couple examples you just melt that
rod and then you create that empty space and then that's how it gets gap even more
wider or open you grapes inside you know and this is the root from the outside this
is the root from the inside this is good root that's exactly what I was aiming
for as you can see you don't see much stop-starts, because there's no any, and
that's the goal with the horizontal like with any any root even if it's vertical you don't want
to have too many stops it's going to be visible nothing's wrong if it's if you have to too
much stop-starts as long as the root is healthy good and solid not nothing wrong with that but
just saying you know I like to have less less stop, more consistent root will be and this is
another angle, another view from inside it's going to show it to time as I
showed before in my previous videos a couple of examples on a tie ins and always pause
a little bit before I connect usually dipping, dipping technique for tie in
and pass over to stop in the middle and now I'm gonna show you an example here so once
preheat add wire and then before that connection before the tie-in just to pause a little bit
dip, connect, top and bottom and just go over and I usually stop on a half of the
root but in this case I just continue on continue on as you can see here, keep that rod
in the puddle it's in the middle it's connected tungsten is always sharp it's that's a
a really crucial thing to have your tungsten Sharp and this is what actually manipulates that
puddle your, tungsten tip of your tungsten it moves that puddle up and down as you can see here a couple examples I
lost connection and then just to reconnect no need to panic no need to rush just
keep moving side to side motion even if you lose a reconnection even if you lose
connection just keep doing side to side and once you connect again just keep
doing what you do that's the best thing as you can see here another tie-in view
no no, I dip a little bit tip of the tungsten but it didn't contaminate any
of that contaminated that much it's a good habit even if you dip a little bit
tip of your tungsten, then you can use a grinder and lightly just go over your, over your root
pass nothing gonna happen that you can use the buffing wheel, unless you really dip tungsten inside
that you broke the tip of your tungsten and then mark that spot and clean that out take a grinder
and dig it out and that's it for the root this is how the root looks like, horizontal there is a
couple of spots on, one thing it's a little bit it's not a little bit it's
a little bit different than the rest of the root, but that's good that's a
good root this is what you want to have this is what you want to aim for as I
said guys use amps that you can handle you know practice go up and down 10 amps 5 amps
you know each time and for the hot pass run a buffing wheel I switched to cup size seven here as
seven works well now for the hot pass and just keep the rod in the middle
and stretch that puddle up and down as I said there's a couple different
technique on the root to feed that wire to hold that wire I'm gonna I hope I'm gonna show
you if I got time to make another video with a different technique how to hold on one side of
the of the bevel and stretch that puddle this is as I said this is the easiest one to keep it
in the middle, we're gonna stretch that puddle it's pretty much simple guys once you dial in, it's not a big
it's not going to be a big deal all you have to do is dial in that's it you got
to burn to learn, there's no other way around guys and that's it pretty much for this
video today hope you guys like it enjoyed, thank you for your support so far
I really appreciate it guys, appreciate all your comments all your likes all that
the positive good stuff, is what keeps me moving forward thank you very much and I'll see you in
the next one guys take care and play safe
