foreign
[Applause]
Hello everyone and welcome to the extreme Tig channel for today's video I'm going to show you lay wire technique
on a six-inch sch. 80 pipe. This is one a little project I am doing at a location where I'm working
at the moment so the pipe is in a positioner in a on a on a pipe stand so it's another field weld
um so the Lay Wire technique is uh basically holding the wire in the puddle and uh
it's all about inclination bending that Rod just following that the pipe curve
but uh also lay wire is not only just holding the on the edge of the of the puddle it's also
by pushing it sometimes you get you have to satisfy that puddle so the rod I'm using
it's a 1/ 8 ER 80s D2 we've got to start at the the bottom you can usually walk the cup for uh or
wiggling inside a groove on the laywire technique is the perfect I'm using a cup size six it's a
5/32 Gap so it's a perfect combination to to walk the cup and to do a lay wire technique
lay wire I like lay wire technique it's fast you can weld faster with a higher amperage
and uh speed up your uh your process
okay for beginning uh we're gonna once you put that connection when you establish that connection
uh then it's gonna go easier just uh right here I'm running around 130 amps
as you can see it's uh it's melting that rod really nice so this pretty much basically lay
wire technique just feeding that uh puddle so it's not only by holding by on the edge and you're
going to satisfy the puddle and the root you have to push and you have to have control
over your puddle and both hands coordination inclination most important thing as well
of your torch and your puddle okay we'll stop on that stop on that first tack this is all root
tacks feather out preheat once it starts melting all the rod as you can see a couple
occasions here I'm losing that connection as I said earlier inclination is most important
as you go a little bit faster and your inclination of the torch then you're gonna
melt and lose that connection with your puddle then you have to reestablish that connection again
as you can see here that's exactly what's happening
and so I'm basically pushing pushing that that Rod as I'm trying to go faster as I'm uh
running on a higher amps so I don't want to have any delays or stop so it might everything
you just open up that bevel okay you can see by the root outside it's a lay wire technique
this is the root inside
it's a little bit uneven but that's okay you're running too hot and that root should be fine
and try to aim here with my camera okay now for the hot pass uh same thing started on the bottom
uh usually when you got pipe it's a little tip when you got pipe in a pipe stand uh you want
to finish when you finish on the top it's a good habit just to flip it over turn over and start so
you don't bend the pipe you don't weld in the same position all the time all the way from root to cap
okay so for the hot pass uh 150. and the same thing you can wiggle I still uh on a cup size six
preheat melt
start melting good then uh
speed up by itself actually
just stretch that puddle nice
and there you go now we can go faster as uh pipe gets hotter and then your travel speed
is going to speed up as well as everything is melting faster and it's gonna be easier
okay hot pass is done as you can see as I said it's a sch. 80 that's what I'm gonna do uh fill
and a fill to flush I'm going to do actually two two passes in one um this is 160 amps so this is
first uh most important is beginning you want to do that you want to make that build up all
the way to those edges so you want to start at the bottom fill the Flush and then just uh
continue on welding uh keeping the same the same build up the same amount so as I said
you have to push wire it's not only holding the wire at the edge is a lay wire technique it's a
welding by itself so you have to push you have to have pay attention you have to control both hands
uh and uh you have to check that puddle be the the same okay I did the finish all spool it's
filled to flush now there's a couple uneven spots at the top but cap is going to cover all that
and now the same thing with the with the capping this is my favorite part of laywire technique
I like lay wire is uh as I said speed up your process sometimes I like to weld fast unless if
it's a field weld then the force to adjust to environment that you're in okay so for the cap
I switched to cup eight 1/8 tungsten 160 amps for the cap pass
so we're gonna walked the cup
start the same steps same build up
and that's what you want to maintain and keep it consistent all the way to the top
or it's just a constant feed I would say pretty much the same thing
as you feed anyway so as I said if you lost any connection you still have to push it in
reestablish that connection again so it's not all you keep you have to keep that puddle satisfied
I know how it sounds but that's what it is okay now uh
half of the spool is done go for the second half
just stretch that puddle as you can see when it's uh cleaned between passes when it's nice
and when you run hot it's a little tip when you run hot your puddle is actually nice and clean
no undercuts as I said inclination most important both hands,torch, tungsten, rod
everything plays a role to have a nice and good beads welds
it's not a science fiction but it requires practice okay that's the cap
as you can see straight edges same consistent steps same build up and that's it that's it
for today's video guys I hope you like it enjoy it just a little bit uh show for my
project what I'm doing just to keep you in the in a loop uh thank you guys for
your support uh if you like it give it thumbs up share comment and see you in the next one
[Music]