How to Pass a 6G Monster Coupon Welding Test (TIG Root and Fill)


– Welcome to Weld.com. I’m Bob Moffitt. Appreciate your support over the years, your comments and your feedback. We’ve been having multiple
requests for the Monster Coupon and I believe Mancub had asked
me a while back to teach him how to do a little back feed which is what I like to
do on Monster Coupons. Want to tack this up want to use
the AHP the new Alpha TG201XD. Run the root pass on this, I’ll run one side and I’ll teach him this back feed method. I think he likes the lay wire, I’m not trying to get him off of that. So we can do a little back feed get some reinforcement in here. Let’s get some gear on, we’ll go right to it. I’m get ready to tack up, I’m probably going to do this a little different than most guys do it. Most people do it. I’m going to put three tacks in here. The first one is going
to be at 12 o’clock. (upbeat music) Just from you got like a fit tack, It’ll be less than a
quarter of an inch long. The other two tacks I want to put in here at two o’clock and 10 o’clock. And the reason I like to do that is because they’re up above center. It leaves the entire bottom open. I can rest my wire
against one of the tacks when I’m coming off a
bottom fit from the inside. Also I can tie into those. Most of the time without
ground running them out and feathering them. I can just keep wrought ongoing. Consume it. Keep wrought on going come up to the top, I’m going to give it a go that way. Personally I like to rest
my wire against my tack. Put my thumb against the
bottom of the coupon over here. Hit the foot pedal inadvertently. Walk this in here off the bottom. Get some reinforcement, until I get up at such a point where I can wiggle a
cup the rest of the way. Working up on the tack, I heat the whole thing up. Add some wire and I’ll just consume that. When the leading edge dips a little bit, let us keep wrought on going. And we have a root pass. Man cub you want to do a little back feed here on monster coupon? – Yeah. – Okay. Mancub wants to learn a little
back feed technique here instead of the flat wire he’s used too, so want to take him out of his element. Do the other side. We’ve got 530 second gap maintained by those tacks that we put in earlier. Come off this bottom side get it wet. Put your wrought on the leading edge. Start building that profile
and you’re good to go. – All right. – When you come up to this tack. When you’re just short of it, use your arc to heat that tack up. Back up. Dab some wire and come on through it. – All right. – Wrought on the leading
edge of that tack, heats up and sags you just, add wire and keep wrought on going. And that way you’re not grinding tacks, you’re using the arc to blend
and keep right on going. Your profile should be
consistent all the way. – I like that not using
a grinder heck yeah. – Just another method Man
that’s way I’ve been doing that. I’ve had good success with
it and I don’t grind a lot. I’m fat and old and lazy
and I don’t like to grind. Don’t. Start welding. Don’t comment on that. Carry on. – So I start about a quarter inch back or three sixteenths back? – From three sixteenths
back on that leading edge just get it good and wet first and then put the wire on the leading edge you’ll see it. – Put wire on leading edge. Heat it up. There you go – Then you take off. – You’re going to blend in. – Relax. – May I readjust? – Okay. Need to readjust, readjust. – All right. – Except you came out
of that awfully quick. You got that piping porosity
so make sure you back up. Actually we should grind that, but back up, consume
that and now keep going. – All right. – There you go. Coming up on the tide. Keep the whole thing up. Add wire. So that you get good result
keep the wire in there. Keep everything up. That’s one and weld through it. Kind of the same way I
started out on the root. I will take, I’ll take and put my thumb
against this lightly. Just to come off the bottom. Until I can rest the cup up here and then I’ll walk it, wash the rest the way. I want to spend time on the edge I want to spend time in the
bevel phase more time up here. Wire is going to follow the arc, but I don’t want to reshape this root I don’t want to heat it up to the point where I’m sucking it back. So. – What’s the point you spend up on top? So you have a good tie in or something – Wire is going to follow the arc. – All right. – I spend more time up here and I come down in the profile you’re laying there correctly. If I spend more time on the bottom and adding wire then my profile
going to be more to the bottom. I want it to lay in there flat. I’m pre-planning my well. – I can see you’re doing a
little slight pause your top. – I’m not trying to fill this up. I’m just trying throw some beef in here. – Got you. So that when we go to the fill passes. – Yeah. – We’re not taking a
chance to blow anything up. – Gotch you. – We come out of this slow, Prowl up on the wall, pop out of it so they don’t lay piping porosity on leading edge. It’s not perfect Perfect. But again I’m pretty sure we’ve got a few passes to put in here. – Yeah. – I’m wanting to fill this a little bit. Get enough beef in there. I didn’t I’m sure we can check that didn’t look like I was hot
enough to rearrange the root. Spend 2/3 of your time up here on the top. Let it wash down here. Make sure you totally weld, blend it into the bevels and keep wrought on going. – Sweet. – Changed it over to a number 10 cups, so you’d have a little
more room to work in. I mean you can freehand it in there too. So. (arc welding hisses) Whenever it’s comfortable for you. – I’m want to try do
the wiggle some stuff. – Walk it off the bottom. Heat it up. Keep the wire on top. There you go. This concludes our root pass and fill pass or half pass
whatever you want to call it on a monster Coupon run. So again we put We did a little bit different technique. We put tacks at 12 o’clock,
10 o’clock, two o’clock. We can back feed coming off the bottom
kept the profile going. We didn’t even grind the tacks because we used the arc and technique to wash through this came up here to top, closed it up. Came back and put our fill pass in with technique of keeping the
wire more to the top side. Learn anything. – Yeah a lot. – Little technique. You can create your own suck back if you pull the wire too soon. You can create too much
up here of a cold wire and it’s not much of a
subtle technique change you go through it and
get comfortable with it. Forget foot pedal just draw
around them all the time set your amperage at
120 whatever you like. – All right. – Keep going. So I hope you found this educational please subscribe to our channel. Check us out on Facebook and Instagram give Mancub a big shout out. – Thank you Bob. – Thanks for watching Weld.Com.

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