🔥 Dual Shield Flux Core Welding with Backing Plate

[@nathanleiter3473]

Thanks for putting your troubleshooting in to the video it’s one of the hardest things as a young welder to figure out

[@zachwarnock8318]

According to a Lincoln rep. I spoke to, running straight CO2 instead of an argon blend will get rid of the wormhole porosity. Makes the slag stay fluid for a moment longer and the gas that causes it has a chance to escape

[@jaminova_1969]

Great video. I really like the split screen and that you describe your settings and what is happening. I am a welding student and just starting to learn what works and what doesn't work for me, and why.

[@johnt9810]

I really suffered from worm holes while working at a structural fab shop. I could get everything to run fine on a piece of scrap and then start welding on the job piece and....bad worm holes. I'm about 98.5% sure it was moisture in the base metal (metal had a good coat of surface rust). Even with grinding clean the weld area the porousity continued. "Preheating" with a torch was the only thing I could figure out to do to consistently solve that issue.

[@czrg473]

John T yea bro all metals have moisture. Preheating is key , but then again could b bad wire

[@garnerday7149]

If a pre heat helped your porosity, than it was moisture.

[@jamestboehm6450]

Running Hobart wire we on occasion get "snail trails" too. Have found that damp wire is the culprit. More voltage and a bit longer stick out seems to help, more time for the wire to heat up and burn out moisture. Crappy gas is also thing to look at too. Keep up the good lessons Bob, old guys are pretty good for a reason.

[@johnw391]

Ran 1/16 dual flux at the shipyard in all weather conditions. Min 25 volts 250 wire 100% co 2 made some nice wells

[@donovanmorris163]

just got done using my 235 today with .045 esab7100 ultra. have been using that wire for last month or two, sure lays down better than the other stuff we had. found the best settings was 300ipm-26volts 45cfh with 1/2" stick out or less

[@ryanjones9305]

I really like that wire too, Bob. I generally use that same wire in .045 exclusively in my MM250 for just about everything unless the weld appearance needs to be flawless. Those little surface dents piss me off, so I'll swap in .035 solid wire for those jobs. This wire just makes an excellent weld. You should be able to just do a straight drag and come out with good surface appearance most of the time, nice and smooth. Maybe not with such a big gap to fill like you had. I also find that I need a higher than solid wire shielding gas flow rate and faster wfs than I would use with solid wire, just like you demonstrated. But my welding shop never gets hot and sweat never drips down into my hood. Ever. You should let that guy weld for a few minutes in short sleeves and check on him in a day or so. Ask him if his sunburn hurts.

[@Avery752]

I run 1.6mm where I work. It feels amazing to get done with some vertical and see the slag lifting up from the bottom. One big chip :)

[@leehuff2330]

General repair/ DIY level here, and I find your videos quite informative and easy for someone of my meager welding skills to understand. Keep 'em coming, and I love your dry humor!

[@thedude6650]

Bob those settings worked great on my HTP pro pulse 220. Ran uphill perfect! Thanks for the tip. 26V/470IPM

[@volvo245]

Loved using one of these back in school. Haven't seen one since. Worked on too light stuff i guess.

[@sidneyselvidge7492]

I love your work bob. I have learned many of your old cat skills over the years, watching your popular channel. Taking notes learning from you, has made me a very successful welder thank you.

[@markanderson5342]

Bob is an absolute legend. Love to see his work!

[@gordjohnson70]

Beautiful welding Bob. Only a welder, who has spent years perfecting his craft, can really appreciate the quality of your work. Like everything else, it looks easy on TV. I love it when the "smart ass know it alls" step up to the plate and shoot themselves in the foot, especially if there is a crowd watching. Old saying... Some guys are lion tamers and others are lying bastards.

[@bradymcphail9690]

Yeah Bob, I love running dual shield, BUTTER is the perfect word. The banter between you and the cameraguy is Excellent! Don't give it up.

[@timwestendorf8303]

i took a test like this for CB&I... but you cut off the backer and back gouge any porosity and grind both sides flush. then xray. but you couldnt use the grinder till tje welder was turned off and stayed off... you could only use the air arc and a slag hammer/brush for the backer removal and back gouging porosity.

[@dougbish1728]

"Does it get hot?" No, metal melts at 23 degrees, the mask is to keep me from going snowblind.

[@bovissanchez6793]

😂😂😂😂😂😂😂😂😂

[@CURTISR503]

Love me some dual shield! Got my 1/16th flux core cert in school last summer. That stuff does run like butter I love it. Can't wait to get out in the field after I graduate and use it in real life. Thanks for the great video tho! I'll pass it on to my weld teacher.

[@KeepingitAnalog]

What is the benefit of Dual Shield Flux Core over the solid wire?

[@delainemaiers6788]

Penetration, speed, weld size

[@tonyv33ee]

Better penetration and just better welds compared to stick

[@Aaronlee83]

I love wire welding. Flux core, MIG, all of it. Thanks for the class today.

[@welditup9559]

Taking this test tomorrow for a job.. been a while since I've ran dual shield, I do all hardwire where I'm at now

[@danielmcconnell1096]

AHAHAHAHAH the bloopers at the end crack me up.

[@bobmoffatt4133]

Daniel McConnell The cameraman loves his bloopers!

[@danielmcconnell1096]

The bloopers on the SMAW electrode characteristics video were the best. hahah

[@USMC-Sniper-0137]

@@bobmoffatt4133 You betcha I do!!

[@Duttonworks]

The term used for marks on the very surface is actually “worm tracks” it comes from gas trying to escape the weld as it’s partially cooled. If the gas escapes from the weld as it is even cooler you get “worm hole porosity”. The difference being the hole that forms at the beginning of where the worm track starts.

[@micjr21]

I really enjoy your videos, and learn a lot from them. I liked the blooper reel this time too lol

[@mortarsquad12]

I have a test to take, can you do FCAW-D in 2G on 1in plate?

[@jdrains16]

At my work, we use a lot of 71-T-1 and 81-T-1. We know all about wormhole porosity, or as we call them, "worm tracks". They're acceptable as is... Unless there's porosity. Sometimes, at the end of the worm track, will be a single pore that goes deep, usually to the bottom of penetration from that bead. That's what we call :wormhole porosity", which is not acceptable.

[@MadMetalShop]

jdrains16 wagon tracks 😉. I think it really depends on what you're welding on. All the stuff I do wagon tracks would pass. The things I weld are engineered to have a 3 to 1 safety ratio which means there's more welds then there needs to be for it to have it max load rating or work load.

[@jarrodkelsey821]

Will you guys do a video on running NR232?

[@kawana1961]

That's the perfect example of connection between welder and welding machine. Good sound, not much sparks and nice burning. I see a lot of people welding with machine gun instead of welding machine :_:

[@assault_skateboards]

This one is super good! That ESAB wire is horrible. Try Hobart Excel Arc71 .045 Runs way smoother. The worm holes defiantly show on the PT and the NDT calls us out on them. Gotta find the sweet spot and they go away. : )

[@dylanjones2038]

Worm holes in my experience have always been from too little stick out, or having the cup too close to the arc. Give it a try and compare the differences, shove the cup in there on some scrap.

[@bijeshbijesh7603]

Hii

[@butlerweldingandfabricatio7352]

I use dual shielded everyday I use 1 setting for Flat vertical and overhead we do not weave because you get the “spin weld bead “ if your machine is set right stringers weld beautiful in all positions 24.0v with about 300- 330 if your wire speed is right it should make a hiss noise no crackle hope this helps. Will gladly make a video if anyone comments.

[@RAZER1RR]

I was just going to comment that I thought you should not weave dual shield, and like you said not only should not but don't need to. Thanks for the info.

[@ericjones5767]

+butlerweldingandfabrication could you make a video?

[@Thingsandstuff247]

Video

[@mikeschmidt7980]

I'd like to see your video

[@Thingsandstuff247]

@@mikeschmidt7980 not going to happen bud

[@vaithilingamr]

awesome sir, really you well defined about the dual well with backing strip set up. thanks

[@unclequack5445]

Ive used this wire many times and I always liked it, You cannot beat the GMAW process for speed My preferred method.

[@BadassWeldingVideos]

some one had me half convinced that the "worm hole" porosity you talk about is caused by too much gas. still only somewhat convinced, mixed results when testing his theory

[@BadassWeldingVideos]

i take that back, old wire... few months old... wow

[@02lb72500HD]

I've found it's not so much the volume of shielding gas but the velocity it comes out of the diffuser and nozzle. And moisture doesn't help

[@Ron_EZ]

I turned my gas down from 30 to 25, which cleared it up for me

[@valeriyb6617]

No matter what you do, warm tracks and pin holes could happen, they even allow them to a certain percentage.

[@gingersteelman8126]

If you like dual shield that runs like butter give esab x series a try. I love it.

[@user-tp8qn3uk9v]

Taking this test tomorrow on 1" plate, stringers only. Should be fun.

[@andrewjackson3327]

I've heard so many things about dual shield welding lately I think I'm going to get a roll for my everlast mig welder and give it a try.

[@donsmith9081]

Another Neverlast spam.

[@joelreynolds5255]

would love to see a video without a backing bar single bevel into a square edge, i cant find much infomation on that, we are starting to do procedures for that in aus cheers

[@zerhouniomar1847]

Can we do it without backing plate v groove preparation and root gap with ceramic in the back? Thanks again for all the shearing knowledge.

[@jeremydoblinger3609]

i run this at work,straight co2 and 1.6mm\1/16th wire diameter 28volts..

[@JFROMM454]

Last time I did a flux core test was just like this except on 1" plate and I think .045 wire. I ran like 24.5 volts, 300 wire speed. Now I see why I struggled, shows my lack of experience with the process. Is the weave a straight side to side or the "lazy triangle" like with the hard wire?

[@jamesfritz3170]

JFROMM454 I run at 26.5 volts and 425ipm

[@kindlyiron]

I run 29volts 240amps on 3g 1in

[@brandonmasser5248]

I’ve never tasted it but am Willy to try once it cools down. Haha ur a cool dude. Love to watch you weld

[@daveosland3199]

I was experiencing worm holes recently- a new roll of wire did the trick.....

[@timothywise4625]

Any groove test should be runnin 1/16 wire eliminates the worm tracks for some reason

[@renlafraise4359]

Finally a good shootage. hey are too many noobie welder that thing they are good but... no !! I like you'r video because you put close up and selfie while you're welding. That's give us a good view of how we need to weld in upside position.

[@rickreiff6750]

Run about 20 feet of that wire out of the gun, then set the wire feed to zero or lift up the feed rollers, set the end of the wire on the grounded table under something heavy enough to keep it in place, then carefully making sure nothing but the very end of the wire is touching anything grounded, hold the trigger for 30 seconds or longer depending on how long the length of wire is, this will super heat the wire, driving off any moisture or lubricant contamination, then let wire cool for a little while, then carefully re-roll the wire back through the liner onto the spool. Weld with the super heated/baked wire, if the "worm-track" porosity goes away, that indicates hydrogen pick up usually, from wire being left out opened up usually, if "worm-track" porosity persists, it usually indicates lack of shielding, too much puddle disturbance(is CFH too high or poor techniques during welding). I deal with trouble shooting all types and sizes of dual shield flux cored and metal cored wires every day. Fun times

[@workwillfreeyou]

Rick Reiff thanks Rick. I'm just starting to use dual-shield wire. My 1st try with dual-shield went poorly but I'll get it.

[@Joshuasmith-wd4hi]

Rick Reiff uintaite

[@workwillfreeyou]

Could someone explain why the gas flow rates are much higher?

[@rickreiff6750]

workwillfreeyou What flow rate are you referring to? Typically when welding with dual-shield fcaw in .035" to 1/16" diameters, 20 to 30CFH of 75/25(C25) is used. When the wire diameter increases to 5/64" and above, it may be necessary to increase CFH as well. Hope this helps.

[@workwillfreeyou]

Thanks Rick.

[@richpitty]

Hey love the vids great work really. I know it's a bit old school but could you do an ac tig vid with a transformer machine and which tungsten works best with those machines

[@mdl102488]

I was under the impression that wormhole porosity is caused by the wire being to hot. Reduce volts by .5 or increase ipm slightly higher. The wire releases gas from in the weld and gas escapes through your weld.

[@williamwornat3821]

I have found that once my c25 bottle gets below 500lbs of pressure those wormholes become alot more common. I always figure the last bit of gas in the bottle is not a correct mixture or what I call dirty gas

[@sanford198]

William Wornat Take the regulator off, tip the bottle over, and roll it back and forth for a minute or so.

[@markmunoz3081]

Could you run a NR232 .072 demonstration ?

[@georgeposada6537]

I would like to see you use o.52 wire on same setup with stringers

[@williamskrainski8407]

I've had a 20 year old ESAB Migmaster 250 outside under a tarp for 3 years with the same spool.....runs like butta

[@felipelecona6862]

Love it, why such high wire speed?

[@JBguitar-cj8pc]

We use 1/16th wire where I work. FCAW-D. Not my favorite process. Wormholes and porosity are both huge problems

[@jesonroco7585]

Very nice weld, i hope you create a video with backing ceramic like this. 👍 ❤️

[@danielfranks9234]

I was wondering if you could show me this same weld but with no gap and with a backing bar

[@riflebear1711]

Do you like that wire alot because it's esab, or e71xxx, or just becaus3 it's dualshield? I'm having alot of spatter issues and came here to get some answers. Overhead position on 1/2" wall 8x8 stl tube. Xmt350, and an ln25. 25v and 235a. .045" e71t-1. Issue is spatter everywhere. Big globs of lava. Filling the cup and ruining consumables quickly. Travel angle doesn't seem to change it. Thoughts?

[@teenagemutantninjawelder8355]

Thank you, Mr. Moffatt. Very well done.

[@villepyykonen9664]

I would like to see any content about 7016 electrodes and how they compare to others.

[@bobmoffatt4133]

I don't have any here in this area. I should be able to get some. They will run like other lo-hy rods.

[@nickjohnson9515]

+Bob Moffatt I got a few boxes at my work probably older then I am I run them now for practice when I'm out of 7018.

[@oliverjuras]

25 v 9.5m/min, 20-25 mm stick out with the wire in the front of the puddle and weave no more than 5 times the wire. Try NSSW SF-3A it has a real bite.

[@kielmeyer1]

Worm holes hate them, I found turning up wire speed a smidge held get rid of them, also I see weaving no weaving none.

[@theimpaler2317]

Quick question can I use gas less flux core with a mixed gas or is there specific gas shielded flux core wire for dual shield welding? Thanks

[@metal_head7018]

next one should be 7018 with backing plate!

[@chiron4061]

2" DBL Extra heavy wall, solid wire root, FCAW fill and cap - 6G

[@julianbrody6392]

I've gotta try some dual shield on my everlast mig welder. I've heard a lot of good things about it.

[@donsmith9081]

Another Neverlast Spam.

[@nathalycarney4015]

Let’s Gooooo!!!! This is exactly what I was looking for. Thank you

[@Dav2Kink]

Are you using C25 or C100 ? Nevermind @ 8:07 You got c25 How is this with C100 ?

[@WolfGangFX]

What temperature? What your amps and wire speed

[@douglasalan7786]

Quick question Bob. The right shot kinda shows a "drag" uphand(nozzle pointing to 8 oclock) The arc shoit itself looks like a push uphill(nozzle point to 10 oclock) like a hard wire shove ? OK One more. How does that flux react on cooler welding...say 1/8" stuff

[@bobmoffatt4133]

Douglas Alan 1/8 material? Fillets and you better move fast.

[@indyjons321]

Should start a series called "Flux Core Friday"

[@fredwilliam1574]

Good idea. I'd also like to see what people are coming up with for fume extraction. I noticed he had an industrial unit in this video. I'd like to rig up something inexpensive for when I need to run flux core through my everlast.

[@indyjons321]

Maybe some computer fans and some dryer exhaust flex tubing? Run it off a hobby battery and *Boom!* Mobile blower. I have a 110v blower fan that an old co-worker gave me.

[@alexrodriquez6451]

Great idea. I need to try that. I've got one of my everlast welders permanently configured for flux core but I'd like to exhaust the smoke faster than it does now.

[@Joseph-Colin-EXP]

Is dual shield also dcen, like tig? Or is like mig, dcep?

[@KarasCyborg]

Could that worm hole porosity be related to your fume hood sucking the shield gas away?

[@krazykanux]

Is C25 better for all potition welding with the dual shield wired? We use 100% CO2 at fhe shop and vertical can be tricky regarding ajusting parameters

[@randalljames1]

I have for the first time run flux wire in the last month.. I am having some issues adjusting.. seems the material does not lay down as quick and I seem to stretching my puddle out too far.. I know slow down but it seems the puddle looks to big...

[@helexable]

could that wormhole porosity be from s small piece of the flux cooling for whatever reason to fast and causing the metal to mold to that cooled piece of slag

[@agustinrosales3632]

For a test, can we make a one wide beat for the face?

[@SamJ6131]

We always call that 'worm tracks' and yes it is frustrating.

[@timothywise4625]

The stick out is what’s caused worm tracks for me. It’s only surface luckily

[@dallasgearsgodpettman1941]

Lol bob looks so sad talking bout wormholes😂😂

[@gamblerscop7769]

would you recommend weaving duel shield over stringers?

[@morganweller1491]

How do you do that with a downward angle gun can you see???

[@markdinero2316]

Nakakamis naman tumira ng fcaw dual flux cord...sayang ngsara na kase ang hanjin shipyard dito pinas

[@valvhal7051]

Mark Dinero dito sa THI Cebu pre,

[@jamesparera4923]

Hello sir how about capping sir what setting wire speed and what volts?

[@snowkracker]

Worm tracks happened when I drag. When I push I’ve never had it happen.

[@imherenow6736]

worm tracks is from your regulator iceing up from the co2 gas then melting the closer it gets to your weld . you need a heater for your regulator . worm tracks are a fail must grind out and do over at least in bridge welding in canada

[@WTFChuk]

He's running C25. Mix gas doesn't ice your regulator.

[@12gaoobuck2]

Could you do a cut polish and etched the root to show the nugget

[@bobmoffatt4133]

12 Ga OOBuck We did bend tests. 3 root, 1 cap. All passed.

[@ryanmiller4952]

Could you do a video of 309 lt .45 on stainless there no videos on it

[@bradfordsoczyk3347]

Do you do any work with nr-212???

[@jasonmills6330]

Like all your videos but just a question your using flux core and a Co mix together?

[@justinlongoria9306]

If possible can you please do a video on different grinding disc and choice for each. Flap disc 40 vs 80 vs 120 vs solid stone and wire wheels and different situations you would us each for.

[@abreitenbach]

Justin Longoria just google it lol. Pretty common sense

[@justinlongoria9306]

I understand the grit difference, just wanted to see a side by side comparison on which is better for mig, tig, stick, and so on. Each tool has its use and I would like to know wich is best to increase productivity. Google only gets you so far.

[@abreitenbach]

Justin Longoria I dont understand what you mean by which is better for mig, tig, stick. The outcome will be the same despite what welding process you use. To grind larger amount of material or want a rougher finish use a lower grit. If you want a smooth surface use a higher grit. I just googled it in 1 minute and got 3 different articles on what different grits do on different material Youre just lazy thats it.

[@brycelowman4730]

How do I get my beads to have that metal shine. I get a black dull look to mines

[@mk27wrx]

What Amps and volts did you run at

[@abreitenbach]

I would love to see 1/16th wire on 3/8" plate for NYSDOT cert

[@Spoderman5000]

How did you torch cut such a perfect bevel? Do you have a jig or something? I haven't been able to get good at that...I need to practice it more. I always have to grind my bevels. :(

[@Welddotcom]

Here's a demo video for you. kzbin.info/www/bejne/roukcqCdm8-lY5I

[@Spoderman5000]

Weld.com Awesome, thanks!

[@craigspakowski7398]

I clicked like just for the ending!

[@jimweiss4270]

WHEN IS THE WELD.COM STORE GOING TO BE OPEN?

[@Bet-vx3fg]

good polarity finally

[@aaronwoodard4413]

What’s a good speed and heat setting for this

[@nealk6387]

Hey Bob, run hpp 175 wire. High performance products is a company that makes welding rod and wire for the maintenance industry and let me tell you I've never found a better rod or wire. Give it a try. Thank you for your videos p.s. awesome arc shots!