Dual Shield Flux Core Welding Basics 

One of the things I respect about this guy, in addition to the fact that he is an indisputable master of his craft, is that he is laconic. He introduces himself and his topic and says, "Let's get right into it." He narrates as he works and it is never inane blather. Every word that comes out of him advances knowledge and direction. This guy should not only be teaching welding, he needs to make a video about how to make instructional videos on RU-vid! I am so weary of uninformed, self-appointed experts who are in love with the sound of their own voice. ~ JSmith P.S. Jody, I hope you are listening.

nothing more I love than hearing "hey jody here"

Amazing video and straight to the point , back to back , I’m 18 years old working as a seamer operators helper at the moment , and skip lunch to practice my welding skills every day , your channel teaches me more than any of the fitters and welders that I talk to , not just that but awesome quality work as well , thank you Mr.Jody .

once again I want to say how I appreciate the way you jump right in to the subject, keeping it rolling without veering into other unnecessary information that just clutters the learning process. Thank You for spending the time helping us become better welders. Short , concise and perfectly delivered

Just picked up a spool of Lincoln Outershield 71 Elite and was I impressed (of course that takes very little). I am attaching AR steel to a backhoe bucket and this cored wire is the first time through my old Miller and I,m loving it. I can't tell you how much I appreciate your videos for all the little (and there really big to me) tips and techniques I learn. THANK YOU.

15 years old and bout to start my first job. Cousin works as a welder and he talked to his boss and i can work there and learn how to weld. Thanks for the tips

I received one of those books from a SkillsUSA competition for welding in high-school, forgot what it was and have been looking for it for years. This short video helped me find it again!!

Thanks for the vid on dual shield. I've used dual shield a lot in structural steel shops. It's definitely not for doing car body work but it's the way to go for structural stuff. The nice thing about it too is that there are standardized welding procedures for using it unlike regular mig hard wire.

This guy has single handedly allowed me to really blow through my welding class and really improve quickly, God bless, thank you Jody!

I have worked in the tank car business and for the parts of the tank cars such as the hatch and housing and lids all we used was lincoln ultracore .045 to. .052 and for uphill I always got away with a steady motion. no manipulation was necessary. we burned in at about 26 volts and right under 300 ipm and it was the sweet spot for me. this is an awsome video I've been waiting on a dual shield video!!

Great video! I'm currently in welding school doing my groove welds practicing for my CWB tickets. For horizontal I'm running very similar settings: wfs: 280 volts: 23.0 with 85/15 gas. Or I'll use C02 for better penetration and using wfs: 300 volts: 26.0-27.0. Keep the videos coming! Cheers from Canada

I love that gas shielded flux core, It has a really smooth arc, I never could get it to weld really good vertically, its a very fluid puddle and want's to fall out or sag, you did great.

I always enjoy some Dual shield of the E71T-1 class. Always felt like a never ending E7018 to me, and that is wonderful. Then the self shielded FCAW E71T-11 runs a lot like a never ending E6011/10 to me. Great video as always!

Thank you for another great video. For me, these type of videos serve as a really good refresher now that I'm getting back into the trade. Great stuff! Keep up the good work and thank you.

Thanks for the tip on "The Procedure Handbook". I picked up "Metals and How to Weld Them" a while back and am reading through that.

I know this is an older video, but still a great video to learn from. I’m newish to welding and your video is one of the better one. Showing what you’re doing while talking about it, great way to make a video. Other people’s videos could be better if they just did that. Thank you for your tips.

I use a commercial anti-spatter spray - but ran out one day. I stole a can on PAM from my wife's supplies - it was peanut oil flavored. I can't tell if the welds suffered, but it sure smelled good and it kept my spatter clean-up a lot easier with a lot less wire brushing. I bought a case of PAM.

FCAW is just so fun to do, and getting a 5/5 (which is incredibly rare) from my welding instructor on my T Joint today caused me to fall even more in love with this field. I intend to pursue my welding career at Washtenaw Community College for 2 years before either joining the work force as an entry level welder and fabricator, or transferring out to a larger university with a more advanced welding program for another 2 years, gaining a more advanced degree and certification, and joining the work force either as an instructor or as a professional welder.

Thanks you guys for the feedback and information. I really appreciate it. because I was think about weaving it all the way out because I'm doing a root with a backing strip.

You must have intersepted my texts, I was just texting with a friend how everyone is tig welding on RU-vid, and here you are posting this video. Thankyou you made me feel better about only having a mig welder. Dan.

Just picked up that book, as well as Metals and How to Weld Them, and GTAW Guide book, thanks again for great info Jody

thanks for the vid. can't wait to see u post some on doing GF weld test plates with backing. we use fcaw for position welds at work mcaw for the other 90% personally I usually run 24.5-25.3v and 300-380ipm when I'm using fcaw. slight side to side as I move up on the verts. biggest thing I find is to keep your travel speed and weave consistent and u will end up with sweet welds.

Great information thanks jody, i love the procedure handbook as a reference while I'm taking my welding classes, the JFLF is a great resource for information as are your videos.

thanks for the video and great products at the store Jody i love and use everything i bought daily. just wanted to thank you

I have to say that you put a lot into your posts and for that Thanks . I am a welder form IL and I work with this wire every day and you mite want to try on a 3f or 4f 225 on the wire and 21.5 volts and see what that does . For any one that is just starting to use this wire your tree technique would be the way to go . It has some learning curve . I think that it would make it quicker for the ones first time out with this wire Thanks Dennis welder form IL

Thanks for the tips Jody helped me pass a test this week

Thanks for the video and also the book recommendation. Believe it or not, 8 years later it’s still available, for $30! Thanks! Love your videos, so helpful.

Thanks for finally doing a flux core vid

I bought that book on accident when the school store employee pointed me to the wrong one but i'm glad i have it now. I noticed the James F. Lincoln book has a chapter on Welding Aluminum and Aluminum alloys with the Gas Tungsten-Arc Process while the AWS McGraw-Hill Education fourth edition Bohnart Welding Principles and Practices book does not.

also is the chart reguarding polarity for the flux core wire correct if your not using shielding gas and just using flux core by its self

great video! I always run tri mark or lincoln 71m dual straight.. 3/4 stick out no weaving at all! seems to burn in great. I weave to and increase stick out to reduce heat if it start to get hot.

We weld Heavy Equipment attachments and use Miller 350P welders with .045 flux core wire along with 75/25 gas. Our two primary settings for what we weld is 285/485 and 293/530. Were welding materials up to 4” thick and some even thicker.

Wow, struggled w/ weld quality, turns out polarity and dragging are key features to sound weld w/gas+flux core Thank you!!!

Love your tri angle got to love the fill speed

Subpare vertical technique, that's why you are crowning my friend. Good verbal content outside of that.

Learned a lot! You are one of the few people on youtube that helped me with my welding... I appreciate you sharing you skill... thank you sir!!!

the welding procedures book is a great resource, i have the red one and two other older ones.

at my old job we used lincoln 71a75, with the right settings you can run straight up a vertical joint and it would lay in perfect.

I used a side to side pattern similar to smaw on my dual shield fluxcore 3G certification test and it worked for me

Great informational video Jody and thanks for the heads up on the book. I have the 211i Thermal Arc and paying a little extra for a good book is ok with me.....

I just wanted to comment on your post on your site Jody, I agree the jflf books are a fantastic resource, I own all of them. I live in Canada, and I don't remember the shipping costs being outrageous, and I personally wouldn't hesitate to purchase them again if I needed to. A great resource for anybody interested in welding, or taking it in school. Edit: I just checked it out. It was 30+38 bucks shipped to my door in Canada, UPS Standard method. The shipping cost goes up slightly if you order more items.

You are still the best Jody ;). I've got a lot of respect for you. God bless you!!!

Thanks! Personally, I used E71T-1 (1.2mm) FCAW-G wire with straight CO2; 23.5v; about 6.5m/min feed speed, and got good looking results. Seems to me: 1.FCAW-G is less smoke 2.easier to get better results for me than bare wire. 3. less noisy.

you put out some great tips today

Nice, I was always told that using flux and gas was a No No. This explains alot.

I personally find that using no movement while going uphill, a slight push angle as you mentioned and only maintaining a consistent speed makes for the best weld. Granted I am just a dime a dozen $14 welder so my method may be totally off the book but in my opinion produces the best running weld. I use high heat on thick material mostly at work so my wire speed is almost never below 375 and I run around 27 volts, this goes for any position barring some multipass or overhead adjustment. I just find that my weld quality doesnt suffer enough in or out of position, but again this could be wrong in terms of going by the book. Recently, as in the past week Ive taken to the drag rule as well after doing my research on the drag vs push debate since we just got a job doing work for the air force that will be heavily tested so Im not taking any chances. Ive posted a few pictures on my instagram as well which the older ones are funny because they are so bad compared to what I do now after only a couple of months.

Great video. You are correct sir the triangle weave as I call it it the best for dual shield when running the root at least. A zee weave can be done for the remainder or even stringers if you like. An inverted V weave works best for hard wire when running the root for the exact reasons you stated for both. Great information in all your videos. Keep up the good work as always. Do you have a donation link so people could help support your efforts to provide quality videos with high quality information? Thanks again.

I use Hobart fabco excel arc 71 and just go by the chart provided with the wire from Hobart. 200 amp machine, 25 volt, 340 in/min wire speed, 5/8" tip to work distance, works perfectly. Just go by the charts provided by the manufacturer of the wire itself and everything will work great. You could get a 5 year old to weld with dual shield flux core and it will come out looking like a pro did it lol

Jack of all trades. Great vid man. Keep it up(:

Thanks for the info, your always my go to. Hope to see you at fab tech 21

I just started my first welding job and they run dual shield hot! It's 0.064 flux core Lincoln wire with 80cf of gas 28v and 310wfs

Hey Jody thanks for the book information I just ordered one. For reference here it is July of 2020 and the book is still $30 to the foundation

im not sure of the part numbers but i used a long contact tip style and the mig nozzle i replaced with one that would give you perfect arc length by just dragging the nozzle on the material.

Always great info. Thanks.

Love your videos.

What is your preferred dual shield wire if you had to pick? Mine is ESAB 7100 Ultra. Not to plug any particular brand here but just curious what others like to use if they had a choice.

I do .125 c channel welding with dualsheild and we run 25 arc volts with 370 ipm, you don't have to weave at all going vertical because the sheer amount of wire and heat going in just fills the joint good

Thanks for the sweet tips. Your input on the wire speed and voltage changed my pool tremendously I didn't realize how touchy this motherfuckin flux core is

in my experience the slower you go vertical up the bumpier it will be due to the relatively longer molten state compared to short arc. it also helps if the fitup provides a little gap for the weld to go to when going vertical up. I I get better results using stringers going hot and fast versus slow and and hot for a less distorted appearance.

What kind of set up do you use to film the footage of your welding demostrations sir?

Wonderful advise..amazing presentation

Do u have a video that shows mig welding w/gas done outdoors and the effects of the elements on this process?

Many misunderstand the main purpose of Dual Shield. Its purpose was relatively simple in that it prevented internal cracks in normal welding passes by applying the final overlapping pass of Dual Shield over normal structural welds to be much hotter with stronger steel grades combined with or over normal steel rods or wire passes. This enabled a combined soft centered steel within the weld while the outside final pass serves as a very hard steel coating. This final pass reheats the underlying welds removing any fractures, cracks and fissures in the softer steel passes BUT MAINTAINS THE SOFTER METAL CENTER FOR NORMAL "WIND/BENDING" FLEXIBILITY TOLERANCES. Dual Shield Dual Pass methods. Ships, Submarines, Television Towers, Water Towers, Pressurized Gas cylinders, catwalks, ladders etc. all depend on it. That final pass is applied usually at a very high amp heat setting and is a law in many states after a television tower collapsed killing a work crew years ago. When high winds from bad weather and or pressures increase inside tanks,, this process allows the structured steel to still maintain it's FLEXIBILITY and yet be very strong outside to absorb the flexing motions within the steel. You will see this being applied also to Tall Pipe Grain Elevator Legs, Fire-escapes and entirely in ship building even though nobody really understands the reasons for different rods for different passes. Some computerized mig's now are rigged for 4 wire grades that all can weld 4 wires at the same instance. Two inside lay the center pass normal wire as two outside wires in Duo-Shield overlap when the 4 tip is zig-zigged back and forth over them as the machine self welds all 4 wire-fed wires. Also the main reason normal steel is used underneath is that Dual Shield alone is too hard and can cause structural steel to become brittle inside and break. Why soft grade steel is applied first and possibly in several passes before the Dual Shield outer is applied. Nuclear Submarine section connections also dangerously rely on both. Another sad fact is that anywhere a tower falls, a water tank collapses, or a tank burst or a crane collapses,,, they did not follow these methods. It kills people folks. And for small welding work the Dual Shield is used singly in welding ship chains, drag chain conveyors and some tools where steel hardness is relevant. Besides Dual Shield Dual Pass methods Single pass methods examples i have overseen personally are military tank tracks, road graders, Hammer-Mill blade tips, feed-mill ribbon mixers and massive gear teeth repair. It is this massive heat generated by the Dual Shield either in rod or wire that has an effect of Heat Treating the steel as it welds. This makes it a much harder stronger weld but sacrifices flexibility in exchange for brittle strength.

I am new to this and mainly use flux core although I do have the Lincoln 125 hd I was not aware you could do both are there any advantages of this where I use it to mostly repair industrial blower assemblies and the like for hvacr equipment? I am little less concerned over the look of the weld as long as I can maintain proper burn in and strength that I need for many different forces including centrifugal forces. Although I do try to remove bbs and any poorly rooted material and re weld for strength as well as general ascetics.

Is the DCEP strickly because gas is used with the flux core? DCEN is what I usually see for flux core.

Learn something new everyday!

weld test tomorrow, thanks jodi!

I'm about to start a new job using 1/16th flux core dual shielded wire. I passed the weld test but it was done in the flat position and even just doing flat I could tell a huge difference in using 1/16th wire compared to .035. There's a lot of vertical up at the place I'm about to work at too. Would the vertical up techniques that are applied using .045 wire in this video be similar to 1/16? For flat I gave it no motion at all.

Hey joedy can you make a video about vertical tig welding because I'm haven problems with I light up an able to walk it one time an I have to go resharpen my tungsten

What would your settings be for 5/8 plate with same wire? I did some wity .035 hardwire a few weeks ago at 28v-450 and it sounded almost like spray arc.

why would you use this procedure over normal C25 gas and/or flux core welding? would this procedure help when using a low end welder?

Jody have you ever done spray arc overhead, at the shop I work at they use 90/10 argon c02 and about 30 volts 500 wfs it's really hot I was wondering what your thoughts on it.?

Would love to see you test one of the JASIC tig machines! They offer very cheap AC/DC TIG machines

I just took a 1" 3G test with dual shielded flux. The only problem I had was I was carrying more metal at the top so I was filling the top of the groove faster than the bottom. Could that be due to a changing gun angle? Lots of fab shops around here run dual shielded flux core. I'm surprised there aren't more videos on this process. I hope you can do a small series on GFAW-S; dos, don'ts, trouble shooting, and options for home users.

Do you have any videos on the silicon bronze wire?or some guys at my work call it the gold wire? Kind of a weird wire to weld with

that crown youre talking about i have found is due to that "stack triangles; give it that extra cron in the middle, ive found running complete stringers, which is faster and ends up with less heat input as your are not maniputing the wire. jrust allow the wire to drive itself in them which can create i nice flat weld. can send photos through of my welds running stirngs, at 24-25 v and about 7-8.2metres a minute

thanks for the video! I was trying to look back to past videos because I'm going to take a welding test for a job that they weld allot with dual shield. never tried my hand at it before but I'm feeling more confident. I figured it wouldn't be that much different than Flux core or Mig.

I wish I was still doing my AWS D1.1 flux core test! I'm on my final welding test, over head stick and I'm struggling ! Any tips? Practice makes perfect I guess (:

Hi Jody, thanks for all your videos. When would you use duel shield welding and why? Thank you

Hi sir, I am going to weld the tubes of my 1977 14 bolt rear end to the pumpkin I drilled into a section I will be cutting off in the future and I got one inch squirly shavings I think that tells me it is cast steel not cast iron. I I prehrated a practice axle to 400 and used .035 weld wire and colled slowly while reheating the cooler spots so it came down evenly and beat with a 20 lb sledge and no cracks. My friend said I should use 045 dual shield but I already have some 035 dual sheild flux core. Should I try the 035 or buy 045 or just stick with regular 035?

do you always do spray arc when using flux core?

A bit off topic, but I'm wanting to upgrade my chop saw, I've got a nice dewalt chop saw. I would like to get one of the carbide/diamond cutting blades that is meant for this type of saw, a high rpm saw that is meant to run with the normal abrasive blades. Any experience with these types of blades are they worth it and do they really last as long as they say? Approximately 25x the life span as compared to an abrasive blade. Thanks to anyone that might have some first hand knowledge.

Thanks for making this video, Jody! I've been secretly hoping you would do some FCAW. I use it all the time at work. Not duel shielded though.

Jody- Can you comment on "wormholes" many experience with FC and dual shield??? Thanks!!

What always worked for me with uphill was to make octagons instead of triangles. Prism's work good as well.

Great video but as a Flux Core welder I want to give a tip. Don't get into Flux Core production welding! If you do, DAMN SURE DON'T DO IT IN TEXAS! .045 and maybe 1/16 is ok but 3/32 plus a 60 lb spool of wire added with 102 deg. 80% humidity 12 hr day times however many days are in the schedule will wear you out!

So I have a roll of e71t1 that says gasless. Can I use 80/20 with it

Love the videos brotha

Amazing video j thank you 👍

Do you have tips for the D1.1 flux core test

With the right settings you can just do an 1/8" to 3/16" quick wiggle and it'll come out almost as slick as 2F. I use 24.5v @ 235ipm with 75ar/25co2

Thanks for your video mr

Hy man can u tell me what the settings would be for an analogy stick machine with a briefcase would be for vertical and overhead

How much should I vary my settings for 308 filler, all other variables the same? Would I be best served looking at the wire directions?

have that book, the welding shop where I purchased it called it the welding bible haha. one thing that's interesting with the dual shield that people I've worked with have done is run on cc instead of cv. I think the wire speed was much higher, bit it seemed to work well. any ideas why they would do that?

What year was that book published? My 1973 12th edition doesn't have that specific chart.

Do you have a video for 2g in fcaw. Thanks

Thanks for the tip on the Handbook. =)

Does the sane volts nd wire speed apply to stainless fluxcore ?

I’m having a serious problem cold rolling on a 5/16” weld. I’m laying a light pass (less than 1/4”) under the 5/16” to get the size correct and it fuses fine on the top but the bottom is horrendous. I’m not sure if it’s my heat, angle, wire feed or travel speed. I’ve tried pulling, pushing and oscillating and I still get the same awful result. I’ll also admit that my stick out is a bit too far.