- [Narrator] Today we're gonna do a fill pass
and a cap.
Couple of things about this, um.
Not really heat sensitive, I'm thinking I'm gonna,
you know we got schedule 80,
so I'm a go ahead and put 120 amps on this thing
with a three-thirty second wire.
What I intend to do here
is
we've got a horizontal weld.
I want to fill it up in one pass
and I can do that, and my technique, my personal technique
that works well for me is
I'll leave the filler wire
on the top part of the bevel in the groove.
I will also make my tungsten go kind of in a diagonal.
To me, what that does is
it makes my weld pool kinda stay at the top
even though I'm weaving it at diagonal
the bead pattern lays in kinda flat.
The filler metal
chases the arc.
So, by doing those two things
leaving this at the top and going at a
diagonal to me it lays in there nice and flat.
And then I don't have to worry about
cupped out at the top and
sagging on bottom, or any of that kind of stuff.
To finish this out, we just want to run a
free hand,
two bead cap.
Okay?
Now I know some of you will say,
go ahead and just do the
just go ahead and walk the cap in there in a single pass.
I just want to show a two bead cap today.
So
I'm gonna pull
I've got my ground over here
let me grab my stuff, we'll get on it.
Again, I'm running 120 amps.
I'm kinda going diagonal with my arc.
But I have my filler wire at the top of the groove.
I've got a fill pass in here, I've left the bottom
edge so I can see it.
This is slightly fuller
at the top and I like that.
I'm gonna let it cool off a little bit
before we commence our two bead cap.
I will probably do the same thing and just
draw this in here freehand.
I'll try to, anyway, its been a long time
since I've done that but I'll give it a go.
I'm gonna wire wheel this,
buff it all up, let it cool off
we'll come back and do our cap.
This is the first bead of a two bead cap.
Cleaned the pot pretty good.
Buffed it out.
I'm still hanging that wire on the top
of my intended bead here.
And I'm bringing the pool down where it
just kinda melts out that bottom beveled edge.
Trying to stay out of the camera guy's way
so I've got my
kinda in an uncomfortable spot here but
Oh man I've gotten pretty good here
I've got reinforcement where I was hanging
my head back trying to stay out of the
camera guy's way and I got a little bit of a
depression here, so I may need to manipulate
further down into my bead.
I'm not real happy with that, it's a little
it's a little flat.
We're gonna roll, though.
Get over here, torch, I'm not done with you yet.
This time I'm looking at the top edge
to make sure that I'm not undercutting the top.
Again, I'm doing the diagonal thing again.
As Cheech Marin would say,
oh he's doing the diagonal thing with it.
Oh I'm not undercut.
I'm not real happy.
I've got a little bit of wave in here.
Does it work?
Yeah.
Am I happy with it?
No.
It's not pretty.
It's not pretty pretty.
But it's effective, I've got reinforcement on the bottom
and I've got reinforcement on the top
no undercut, its just that center blend in there.
Again, small board pipe
I'm trying to hang my head around here to
get out of my guy's way here but
and there's other methods, you know,
there's other methods of walking the cup.
I just chose to do this to demonstrate it.
Kinda rolled my wrist around the pipe.
Uh, is it hot?
It's good and warm, but I don't put a lot
I don't put my hands hard on the pipe.
I just kind of a real light pressure.
Just slip on there.
I hope this helps, I hope it was educational.
It's not perfect and I'll own up to that.
I haven't done one of these in quite some time
that's not an excuse, I just haven't practiced
one in quite a while, but
I plan on practicing this one a little bit more.
Again, did the fill
remember that diagonal method and experiment it with
leaving the filler wire on the top part
so that it doesn't wash out on bottom
like I did right here.
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