Short Circuit MIG vs Spray Welding Bend Test

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Short Circuit MIG is generally used on thin materials due to it's prone to lack of fusion. Today we are going to put that theory to the test with a welding bend test. We're going to run a short circuit plate, as well as a plate with spray transfer and compare the bend test on both.
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6 окт 2024

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Комментарии : 289

@misplacedcaper9662 3 года назад

We run short circuit for everything, and have for over 25 years. Machines are Lincoln CV305 power units running 460v 3 phase, typical settings are 25-27v 450-525w/s with .040 er70s-6 wire running stargon (Argon/carbon dioxide/oxygen mix). Never had a problem, and routinely have stuff sent out for destruction testing (have 1" diameter d-rings come back shaped like footballs with zero weld fails on the clips). The gas we use does allow for spray transfer, but we're required to do a lot of overhead and vertical welding.

@Mr_Colbasaur 3 года назад

Anyone who is looking to actually make the short circuit work, some things I believe Red Beard could have touched on: he could have had much better luck on his short-circuit root if he had of stayed on the leading edge of the puddle jumping from corner to corner a bit faster instead of staying in the middle and allowing it to slowly fill the space up. If grinding is allowed, he could have also knocked down the convexity of the root a bit so the hot pass would have better success to to further melt the root corners in better. Thanks for the Video.

@TheKajunkat 4 года назад

I still remember going into a fab shop to check on a vessel they were building in the early 90's. They were putting the can sections together and all I could hear was "putt, putt, sizzle, putt, putt." coming from both welders. I double checked the weld procedure, took a short video on my old sony mavica camera and talked to the foreman. I asked him "what process are you using short circuit, globular or spray transfer" he looked at me like a cow at a new gate and said "mig, you idiot". I asked to use the phone and called the client. fifteen minutes later the owner showed up and shut the job down for a client visit. After another hour of light snooping I found enough other issues that the client rejected the vessel outright. they ended up cutting the pieces up for scrap. Heads, can sections, nozzles all had issues. I submitted my report and hit the road. The man rep later called me to say they scrapped the original plan and went back to submergerd arc and GTAW construction with a different material of construction. I guess that turned out alright because I never got the call to court, haha. That was the first vessel I condemned, boy was I nervous!

@privateassman8839 7 месяцев назад

"MIG, you idiot" 😂

@deanrosner2007 4 года назад

I have been welding for 20 years hold 30 plus certs. I have short circuit welded .0.35 75/25 co2 argon for years on heavy material never had an issue. You welded that short circuit at ridiculous low settings especially for flat and back up strip. Of course it broke if you ran normal setting. 0.35 24v 350 to 385 it would have passed no problem. All of my mig tests were done short circuit. Your spray was set high voltage it should pass. I welded at caterpillar for years and was welding 1.5 in thick steel short circuit. All welds ultrasound inspected never failed one weld. All in the settings.

@ryanowens2771 4 года назад

Dean Rosner true Dean, it can be done,I’ve done it too. The trouble is it takes a combination of perfect settings and near perfect technique _ consistently. He mentioned”repeatability “, that’s the issue. It’s not common enough for all of the needed things to come together every time. A focused welder ,who knows how to set the machine for thickness/position/purpose/environment who can read every shift of the puddle split second by split second. It’s just like common sense- it’s not as common as it should be and therefore can’t be used as a standard safely. - neither can short circuit welding on structural.

@deanrosner2007 4 года назад

On structural vert welds i run 19 210 never have any problems. I have welded thick material and welds were ultrasound and ndt magnet practical tested. its all how you can fine tune.welding is an art

@18JamesBlond 4 года назад

Aren't the settings and gas the only difference between short circuit and spray transfer? I'm a tig welder, so I'm ignorant, but just googling around for spray arc settings puts the settings you listed in the spray transfer category.

@deanrosner2007 4 года назад

@UC-AbAlY4QVoLlSaXx5yw0Wg its all in the settings if you have say 23 350 its not globular if you turned your wire down to say 300 you would see the globs form .if you turned the wire down even more you would see spray.

@xblizbroke 4 года назад

@@deanrosner2007 at 24v with 350ish WFS you'd be getting closer to spray transfer with higher argon content though. You also claim that globular transfer and spray are achieved by turning down the wire speed and that you must turn down the WFS to go from globular to spray? Spray: high current and WFS (220A+) in argon rich shield gas - high deposition, smooth, clean bead with very little spatter Cons: not good for thin material or out of position welding (unless it's a pulsed process) Globular: operates between the upper amp limit of short circuit to around 400A providing high deposition in flat position using CO2 rich shield gas and thicker wire Cons: poor arc continuity, excessive spatter, needs gravity to deposit droplets The processes aren't just turning your wirespeed down or up and short circuit is the lowest current/deposition rate method of the 3. Electrode size, gas content, weld current, and arc voltage are what makes them different and achieve the following characteristics- Short circuit: electrode contacts workpiece or weld puddle many times per second to transfer current which forms a short circuit (hence the name) melting the workpiece and electrode Spray: arc established through inert gas from electrode to workpiece, melting electrode and workpiece while magnetic forces from current pull the filler metal into the weld puddle Globular: arc established from electrode to workpiece through shield gas melting electrode until a droplet forms and grows large enough for gravity to pull it into the weld puddle.

@KondoriRamin 4 года назад

I had done this but I did not document it as you did. I needed such a video to show to my clients... Thank you...

@johnshufflebarger9817 4 года назад

I used 3/8 on our short circuit bend tests at school, and no problem getting penetration. In fact I had no cracks or anything on either the root or the face bend..

@TheTrooper115SFS 4 года назад

Same. Afterwards the teacher basically said it wasn't the recommended process for that thickness but he had us do it, because to pass everything had to be perfect; it made us better. Fun challenge, but for the thick stuff spray and dual shield is the way to go.

@connormarek1028 9 месяцев назад

Me to. I passed two bends with short circuit MIG. My instructor made me do another one because the first one failed visual inspection, but neither one failed bend ;)

@mikemorgan5015 4 года назад

Interesting. I'm a hack at this. A much better grinder than welder. But when I do weld, I make sure to direct the wire into the corners with a combination of gun angle and side to side motion. It just seemed to me that you were relying solely on the puddle to fuse into the base metal instead of using the arc force to punch the heat a little deeper. Am I off in left field here? Also, I'd like to see this done with both gasless and shielded flux core.

@login9804 4 года назад

I would like to see this test in a less controlled application like you are saying by angling the gun into the corners instead of just relying on the puddle. Seems like it would have a better chance at passing that way.

@Turningwrenchs Год назад

No your seeing same mistake i see if you going to mig weld something that needs to hold mean ing if it made out off 1/2 thick metal your weld better be stronger. JUST a class 5 hitch on the back of my Rv pulling my Stacker trailer

@robrath31 3 месяца назад

I'm 'on the job' taught, going 18 months now MIG'n everyday, don't usually weld anything over 5mm or 6mm , but definitely gonna think twice about maybe spraying when on those 5mm or 6mm items! Cheers!

@massimo79mmm 2 года назад

i think the problem is the technique used for root pass. with backplate you can’t reach both wall together, this caused the lof. without a backplate you have to wave from a border to the other, so the fusion is complete, never had a single problem

@chopperchuck 4 года назад

i have been a welder for almost 40 years ,in that time I have lost track of the number of welders I have worked with that confuse can not be done with should not be done or not recommended v.s will never work ever

@metalslingr 4 года назад

Best arc shots in the business.

@daveosland3199 2 года назад

I've passed the bend tests in 2, 3 and 4g w/short circuit- Always with a pull, not push angle, and keeping the wire on the leading edge of the puddle... Tha being said, I've seen more bend failures w/ Mig than any other process.

@joels7605 4 года назад

Baby shark... That got an out loud laugh. Well done.

@frankperkins724 4 года назад

I was expecting Mama shark next with a larger pair.

@dreambuilderkmg 4 года назад

Frank Perkins they go through the whole bit. It is in the Hefner performance welding cart build series.

@darkside2326 11 месяцев назад

I mean wow, the quality of your knowledge is outstanding. Thank you.

@okiedoke6373 3 года назад

I like it hot 42 volt , wire speed 450 low side 600 high side on dual trigger gun ,or or trigger lock @ 5 ro 550 depending on thickness. We used 92% arg 8% co2 , some times 90%arg , 8%co2 , 2% oxy to intensify spray on weaker machines .

@brekeybeauty6175 4 года назад

I miss welding 😖 I'm now on my third semester and will be starting back soon omg

@petar443 2 года назад

It's not mentioned in the video , but Jason is using 0.035" wire here.

@kennypasco5799 4 года назад

I’ve Never had a problem running a short circuit on 3/8 passed quite a few of them

@kennypasco5799 4 года назад

It was also open foot

@kennypasco5799 4 года назад

Root

@renanstreetsk8 4 года назад

Me too without backing strap. It seems to me that the 90º angle caused this because the wire was on top of the puddle, causing the lack of fusion. I would like to see another test on this plate but with, idk, maybe 45º angle and more concentration on the plates and not in the backing...

@marklugo6002 4 года назад

@@renanstreetsk8 Me too. With 60 degree included angle. The one spray test did not look 3/8" thick too???

@bobprice9244 5 месяцев назад

I've done downhill roots with . 035 wire and a quick hot pass with the same wire. All about 20 volts and 420 ipm. I did cover with a 7018. It was very good. Exray was first then an etch, followed by a bend. All was good. Metal was 3/8 with a 1/8 land and a 30° bevel. Bend test was A-OK

@fsj197811 4 года назад

Educational, thanks for sharing. :-) I've been sticking things together for many years and I'm finally starting to pay attention and try to do a better job.

@gmacka6333 3 месяца назад

Most places I've worked have Implemented a rule of thumb policy, for where we have materials greater than 3/16", we use dual shield Flux Core

@secretagent5658 4 года назад

I love your funny moments you put in the video :) Brightens my day

@themechanicman3865 3 года назад

Yeah I don't care what they say about structural using a Millermatic 250 in and Lincoln sp250 Annie Millermatic 252 the happiest I've done up to is I think 7/8 inch plate with a few passes and they heavy duty trailer works just fine no pulse

@calebruck5317 4 года назад

I took a mig open root short circuit had no problem with it.

@renanstreetsk8 4 года назад

Another awesome video! But I've always welded in short circuit without backing strap in 3/8 plate and didn't fail . It seems to me that the 90º angle caused this because the wire was on top of the puddle, causing the lack of fusion. I would like to see another test on this plate but with, idk, maybe 45º angle and more concentration on the plates and not in the backing...

@a.bakker64 4 года назад

Nice spray shots! Most of us ‘knew’ this, but did no research. Now we know.

@ronaldbrouhard1247 17 дней назад

One thing about Spray-Arcing; if you're making a pass anything over around 6" long, you need a water-cooled torch & better heat protection for your front hand.

@gmacka6333 3 месяца назад

Corner cracks are pretty forgiving, however, don't forget that the examiner will always be checking that corner crack for signs of lack of fusion or slag inclusions, or other discontinuities that can be attributed to the welder. obviously depending on process.

@AWDJRforYouTube 4 года назад

The Best of both modes of GMAW transfer is Pulsed-Spray Transfer... IMHO will be the standard mode that will mostly replace Short Circuit Transfer, except on very thin sheet, in the years to come!

@mikeshestopal5644 4 года назад

If it had an open root configuration it would have never failed, all uphill passes Root@ .035 17.2v 170ipm Hot@ 18.9v 200ipm Cap @ 18.5@180ipm

@marklugo6002 4 года назад

Yes. Exactly. Wrong technique here. About what I'd use on voltage too. A tad bit more wire speed on root and subsequent passes than you posted. Though hot/cap wouldn't probably bother to change.

@hillbullymetalco 4 года назад

I agree. I’ve qualified pipe procedures with short circuit from root to cap and pass every time. But I do understand the concerns when it comes to structural applications. This was a good example of that. When in doubt, get the flux cored out. 😉

@davidtodd4035 4 года назад

Open root is not a prequalified procedure per the D1.1. CJP groove welds typically have a backing bar. When using a backing bar SC fails every time >5/16. On open root pipe SC is amazing. Better yet modified short circuit STT or RMD

@davidtodd4035 4 года назад

"Prequalified joint design" i meant to type

@geoffmooregm 4 года назад

If you're welding up hill backing or no backing it would pass with short circuit. When going uphill you get great heat input because the travel speed is so low. There is no risk of welding on top of your puddle and you always get good penetration. When doing flat and horizontal multi pass welds, spray transfer is the way to go because your efficiency is so much higher.

@rcflanagan1597 3 года назад

We used to give a 3/4 vertical up open root bend test, and then a 3/4 open root over head bend test after you got hired, and I've never seen a test fail that bad.

@stevehartlieb 11 месяцев назад

Look at the gas, wire speed, voltage, backing plate dude was using... LOL

@donsmith9081 4 месяца назад

@@stevehartlieb The stickout looked as much as the transfer

@erickalvarez900 4 года назад

Is "spray" "short circuit" and "gobular" settings you change on your machine or is it a formula of wire speed to amp/voltage to get the different effects?

@1Guason3 4 года назад

If I remember correctly, it's a setting. They require different gas mixes.

@CAZMO410 4 года назад

Just the parameter changes i think. Some machines might have presets, im not 100 percent though.

@fehu-soldadura 4 года назад

You need to adjust the settings on your machine and select the propper gas, you can only get Short circuit or globular with CO2 and mixtures where the CO2 levels are higher than 18%, for Spray the commercial gas would be 90%Ar/10%C02, the change in transfer modes is because of the increase of voltage, you can have a 0.045" wire with 90/10 gas, 350 in/min, 22 volts and you get a short circuit, go around 24-26 volts you will see the heavy drops of globular, if you go with the same 350 in/min and up to 27-28 volts the spray transfer will develop

@erickalvarez900 4 года назад

@@fehu-soldadura Thanks!

@zod-engineering-welding 4 года назад

Short circuit, globular, & spray are "modes of transfer". Those words are welding terminology that describes how the metal is being deposited (aka transferred) from the wire to the base metal being welded. In the order I listed them, generally speaking they go from "coldest" to "hottest". How you as a weldor obtain those modes of transfer has to do with both WFS and Voltage. It's not a "button" on a menu somewhere. You can do more research on your own from Google, but basically your latter description is correct.

@leroy420b 4 года назад

I have regularly welded pipe over 5/16 wall thickness without issue. Though I believe our setups are different. I run 0.35 wire 275-320ish @19.8V with 75/25 Argon/CO2 gas 1/8 to 5/32 gap on an open root. Downhill the root and up hill the rest.

@daskiier 4 года назад

....pipe isn’t structural bud

@chasewhitehead697 4 года назад

Could you show us an uphill open root, root pass with mig?

@leroy420b 4 года назад

It can be done but it's a pain in the ass at least on pipe anyway.

@angelikaturbanisch2289 3 года назад

@@leroy420b naa thats easy. H-L045 is a must have.

@adrienst.journy4652 4 года назад

That's a nice set of dies you built !

@Peter-V_00 4 года назад

Abomb79 made the bend rollers.

@inflamerss 3 года назад

Отличный опыт, пожалуй сохраню в ,,избранное,, впрочем, я догадывался, что факел дает лучшее проплавление, чем короткая дуга. Факел лучше переплавляет свариваемую поверхность и зона сплавления шире (это видно по ширине полосы побежалости), смешение расплава и проволоки лучше. Шов в итоге крепче. Спасибо за опыт, очень к стати.

@gmacka6333 3 месяца назад

I find the best trick to passing a mig short circuit Bend test, keep your wire feed speed fairly low and manageable. A good rule of thumb is the 10/1 ratio. So if you're welding at 18 volts, turn your wire to 180 ipm.

@scottdavis2100 4 года назад

I prefer globular transfer 75/25 and 21volts

@robinsonsmotorcycleandauto3929 4 года назад

I would like a comparison with true production welding settings. .045 wire around 27 volts and around 600 inches per minute give or take depending on machine. And I do agree spray is best for penetration and thicker materials along with globular transfer but also know short arc is common for weldments 3/8ths and below.

@RR3EURO 4 года назад

Great illustration thank you 🙏🏾

@makavelimexicano 3 года назад

Can you do a bend test on spray transfer with higher voltage. Like at least 23.5 volts? Bend test that...I agree that was cold for 3/8 plate boss

@quickshot4050 3 года назад

I’ve done 3/4’s plate with short circuit in 2g, 3g, and 4g with 75/25, it’s easy, you just have to hold the corner and watch it dig into the plate, another thing is, that it is only a few beads because you want thick large beads that penetrate the corners, just because you can’t do it, doesn’t mean it isn’t possible, as for me it’s easy to do and I’m a noob.

@mikelepley5036 3 года назад

I passed my first 3g with short arc. And what would be considered cold. I’m certified in all weld process and still trust short. Maybe more practice.

@darthtrump4428 4 года назад

Please make some comparisons of PULSE MIG vs SHORT CIRCUIT vs SPRAY

@xblizbroke 4 года назад

Pulse just combines the pros of both methods. Works for thin and thick, little to no spatter, welds out of position, good wash and bead appearance, and good deposition rate and electrode efficiency.

@randallradke1279 4 года назад

In my college class we did a 3/8 open root 3g mig weld (using short circuit) and both my root bend and face bend had no problems with it. I don’t see how this short circuit bend test failure isn’t on the welder.

@104littleal6 4 года назад

I think Renan Santos has the answer. He said "It seems to me that the 90º angle caused this because *the wire was on top of the puddle, causing the lack of fusion.* I would like to see another test on this plate but with, idk, maybe 45º angle and more concentration on the plates and not in the backing..." *That sounds good to me too.*

@19672701 4 года назад

Dumb question,does cutting the samples with a O/A torch anneal the weld and change the results of the test?

@carolshawol6699 4 года назад

Not with a36 .high strength steel like T1 yes no flame cutting due to annealing only plasma or water or saw cutting

@19672701 4 года назад

@@carolshawol6699 OK thanks,just thought they would band saw them. Makes sense.

@mordantly 4 года назад

No quench either on test plates! I used plasma on my 3/8 with no ill effect. O/A scarfing was the root failure in mine.

@Subway1427 4 года назад

No, it's only mild steel.

@TigerNash21 Год назад

Have you ever considered just turning up your heat when using short circuit? Especially in the flat position, there is nothing stopping you from running that weld at 23-25v and a matching wire speed

@stevehartlieb 11 месяцев назад

That does quite sound like short circut, but more of a spray

@TigerNash21 10 месяцев назад

@@stevehartlieb would still be short circuit if using 75/25 gas

@toolbox-gua 4 года назад

Always good content. Learning. Thank you.

@scottysutherland3568 Год назад

He's using the same mig short circuit settings that I use for 1/8" square tubing welding. Still though, excellent information as usual from red beard!

@donsmith9081 4 месяца назад

Too much stickout for short circuit

@shexdensmore 4 года назад

95/5 does not increase the heat transfer. It does the opposite. You need 80% or more Argon gas mix to create a spray transfer. It's the argon combined with the higher current and most of all, the higher voltage (I forget what the required voltage and wire feed is) that allows the process to be a spray transfer. Giving it a deeper penetration. The increase of Argon increases the pinch force causing molten droplets to form at the tip of the wire. I'd love to see a short circuit welding of this metal thickness done with 100% co2 gas shielding.

@ronaldbrouhard1247 17 дней назад

I used 98/2 Spray-Arc Steel & straight Argon on Aluminum For over 10 years. That works, & will pass any test (when done right).

@justa_dude 4 года назад

Very solid tips, thank you

@victoryfirst2878 4 года назад

Spray weld tested best. SMAW would do the same with old and super cheap technology. But cleaning up the slag is the negative. So I will agree with you about spray weld. Keep on a welding too. VF

@Sturmgeschutz2 4 года назад

For qnything above what short circuit is capable of, I went straight to flux core.

@victoralfonsomendozasoto9758 Год назад

podrias hacer mas videos mas detallado soldado con spray?

@jayteague1826 4 года назад

Thanks man. Appreciate the effort of video. Education plus tom foolery good mix.

@pierrepierrot2325 4 года назад

axial spraying works only with high thickness .

@Kevin.L_ 4 года назад

I don't care for Mig, but that spray is super impressive.

@elijahfranklin6074 4 года назад

Use it right, and it'll do right. As per a bend or acid test.

@timhayes3336 9 месяцев назад

During the spray arc root he was shaking like a dog shitting glass. lol

@markbreidenbaugh6033 4 года назад

Oh man in school I had to pass open rood plate .375 thick and pipe .375 in all positions plus a 6g super coupon with short circuit, it pretty much sucked.

@marklugo6002 4 года назад

But I assume you eventually did right? Because it is taught in schools. Many people have to do it everyday.

@ausfuhrungg7337 4 года назад

I'm realizing just how uneducated i am now

@JadyGrudd Год назад

That's why we're here, lol.

@angelanamanny390 Год назад

Ditto!! And I'm currently in weld school.... RU-vid has taught me more

@Sicktrickintuner 4 года назад

Hell, try it with actual settings, that 19.5V is cold for 3/8” I run 19.9V on 1/4” and about 385wfs. Those are my 1/8” and maybe 3/16” settings you ran there......

@phillhuddleston9445 3 года назад

So as long as you have enough amperage, voltage and wire speed and you use 95% argon/5% co2 gas you can spray weld is this correct? The reason I ask is I have a dimension 652 welder that is transformer based with a 400 amp torch so there is more than enough power but I wasn't sure if you needed an inverter based welder to spray-weld.

@ShadeAkeley 4 года назад

Ok, I really need to ask. Where do you guys get those sweet gas bottle covers labelling what's inside ?

@gmacka6333 3 месяца назад

Average short circuit transfer occurs between 16-21 volts, Globular transfer 21- 26 and spray (with a minimum of 85% Argon) w/.035" wire Dia. 26+ roughly.

@sibaramdas1716 2 года назад

Very nice vdo. Clear understanding. 👍

@Chandler7157 4 года назад

Can you do a video on how to stay cool while welding?

@randallradke1279 4 года назад

When you get too hot your ballsack expands in size, gaining surface area and allowing more air to cool said area.

@Drillmechanic 11 месяцев назад

Should add more heat by using short circuit to get better bend test!

@donsmith9081 4 месяца назад

And Less stickout

@mike-yp1uk 3 месяца назад

Great video

@kmccurdy21 11 месяцев назад

Increase wire feed speed a skosh for the root. Arc won’t fan out so much and will punch in better. Talking spray

@Hitman-ds1ei 2 месяца назад

For some reason you rarely hear or see these weld videos talk about globular transfer, like the only options are short circuit or spray ????

@Weldinginlove 2 года назад

Intresting. . Thank for this video educational for me. . 🧑‍🏭🙏

@Adam-lv1uu 4 года назад

You guys and your bias tests. 😂 good to see you back, I was expecting a bigger beard though. Would you like to see a pic of 2 four inch vertical up single pass short circuit fillet welds on 3\8 plate to 1/4 inch plate holding over 2 tons with my life depending on them? Also being loaded improperly with respect to the direction of loading and the fillet weld. Welded at 21 volts and 350 ipm vertical up so I'm not sure why you welded it flat only at 19 volts and way to low of wire speed. Also you didnt ride the edge of the puddle with the arc you kept it in the puddle. Improper technique alone with improper parameters will result in a failed weld. Not because of the transfer mode. Also 26 volt was a bit excessive of course it will penetrate, even with improper technique. Kind of takes some of the human error out I guess, so the saying goes any monkey can pull a triger on a mig gun. Let's see 23 volts and only changes the wire speed \ gas to achieve your transfer mode and use your fancy welding robot. Push with spray and pull with the short circuit keeping the arc buried in the root on the edge of the puddle. Then we have a non bias test with credible results.

@mordantly 4 года назад

23v is the high end globular mode. 24v is true spray.

@Adam-lv1uu 4 года назад

@@mordantly false, lower your wire feed and change your gas for mild steel 😂 now with aluminum mig your going to get a spray at any voltage you achieve an arc. That is if your doing it right.

@mattneville217 4 года назад

Over 215 amps is spray by D1.1. Good at ya for kicking that out.

@-Littlepimp- 2 года назад

See I've done short arc on half in. Plate and never have any lack of fusion

@sgtfatboy1 4 года назад

Excellent vid by the way!!!

@Welddotcom 4 года назад

Thanks for watching

@bruced1429 4 года назад

Jason, did you mention what size wire you used ? hope they were the same. I would like to see spray verses dual shield ,same size wire. I started using Esab 7100 Ultra dual shield after seeing Jody Collier using it with JD, that wire is exceptional and any position. wire so I wonder how it would stack up against spray mig as you can use the same 75/25 mix as regular short arc mig so you don't have to buy another gas which is also more expensive than 75/25. So now on anything over 3/16 I use dual shield and under short arc mig.. You tests are great keep up the good work.

@fehu-soldadura 4 года назад

Tensile properties with Dual Shield 7100 Ultra should be higher

@bruced1429 4 года назад

@@fehu-soldadura the 7100 has a yield strength of 78 KSI and tensile of 88 KSI with 75/25 which is more than 7018 rods so plenty of strength in the 7100. this info I got from ESAB"S materials pdf.

@deviouslee1183 4 года назад

When I worked at Cat we ran spray transfer 75/25 argon/Co2 with .045 Lincoln L-98 wire it gives very consistent welds for flat and horizontal welds.

@frankrice1253 4 года назад

In your short arc root pass, it looked like you were not "ahead" of the puddle. Your wire is not doing its job in creating a "trench" for the puddle to flow into. Its really hard to confirm this is whats happening in this video due to the angle of the camera but, I have passed this type of test, running short arc, by staying ahead of the puddle & quickly whip in a back fill.(this is not meant to criticize) thankyou for the video. 👍

@Welddotcom 4 года назад

It's not that you can't pass. It's just not pre-qualified because it's not repeatable.

@luisalbertotrazzi7366 2 года назад

Thanks for sharing

@mattneville217 4 года назад

How can you compare short circuit to spray if you changed gas? By D1.1 that is a essential variable for the PQR, WPS & the WPQR. Good video love the content just doing a comparison video but changing the gas?

@johnmccloud1054 4 года назад

Spray transfer needs a higher Argon content in the gas mix, hence why he changed gas when he switched over to spray.

@tsi87supr60 4 года назад

Have you don a comparison of innershield mig vs shielded mig?

@rob-vz4wt 4 года назад

Can you spray transfer with any mig welder? All you have to do is change gas and adjust your wire speed and voltage accordingly? I'm working with an old miller auto arc 255, with generic 1-6 voltage and 0-100 wire feed speed.

@AustinB3.6R Год назад

I have to do a bend test on a 3/8” plate with no back plate, doing vertical uphill with mig, on a 1/8th inch gap. Idk how I’m fixing to do that

@JustinSanders-c9r 4 месяца назад

Love spray high voltage, fast wire speed, sexy weld and grate penetration overall better imo

@variableknife4702 2 года назад

Forgive my ignorance - but is this part of training and certification for welders in general? Are there requirements to make this type of weld actually work, despite the difficulty, or is this just showing why this technique isn't suggested for this task? Would 5/16ths really have been better?

@Weldingprobably 4 года назад

That spray is nice

@bigpappas65ss 2 года назад

Wonderful video! Just a quick question, what is the gas flow rate for the spray transfer welding? I’m unable to find any documentation or guidelines for this. Thank you for your time. 🤙🏽

@Mephistopheles791 Год назад

20-25 is fine (20 years welding structural/ CWI / Weld instructor)

@juanmangerita 4 года назад

Stupid question... Can you use spray welding to fill/weld a cast iron part? Great video

@deanrosner2007 4 года назад

Not cast. Cast is really finicky shit sometimes it works sometimes it dont. Try silicon bronze tig. works well for hard to weld parts. Or stick weld remember pre heat and keep the part hot during passes and try to cool as slow as possible. Good luck

@donsmith9081 4 месяца назад

I have had great results with ER70S-6, 75/25 and preheat

@mohammedtroy4296 4 года назад

great job marine

@JFROMM454 4 года назад

What about MIG processes on stainless? Does the same principles apply as steel?

@Sicktrickintuner 4 года назад

Yes and no, it’s much different

@Sturmgeschutz2 4 года назад

Lincoln STT is what i use.

@bitjockey6265 4 года назад

Bring back Bob Moffit.

@jesselee4226 2 года назад

My current teacher in trade school has me running 225 volts is that too hot? With wire feed speed of 19.5 in a min are the settings off Alil bit?

@ktmturbo5836 4 года назад

Dont they sell porcelen backing in USA? We USE that alot in NORWAY.

@dommendoza 3 года назад

i have a question. c10 use for Short Circuit?! good or not?!

@wichitawrangler9526 2 года назад

Can too voltage being too high cause a failure?

@unitedwestandmusicllc9010 4 года назад

Jajajajaja love your show men from Miami FL

@marklugo6002 4 года назад

You guys must have not gotten the memo. Most State operated tech schools in GA require testing in open root short circuit MIG on 3/8" plate, all positions. They pass everyday that way. But usually you use 1/8" or less open root and around 3//32" land without a backer. 4 to 5 passes. Passed a many of them in all positions, and taught students later on to do the same. Hmmm....

@18JamesBlond 4 года назад

the wasn't testing open root. this test was specifically for 3/8 plate with a backing bar. apples and oranges.

@adriantorres5209 3 года назад

what kind of wire did you used?

@mateuszwlodarczyk1929 3 года назад

but how to weld a root pas whitout backing with spray? (for multi layer welding on thick material) It would be to hot and to much wire.

@corknakovastein 4 года назад

I need a welder so I can try that

@christians131 4 года назад

I mostly spray arc at work and I like running .045 wire at 27.5v and 375wfs with 90/10 gas. When my machine was new I could run it all day at those settings but now after about a year with the machine, I can maybe run 2’ total of weld before it starts sputtering and will then ruin the contact tip. I feel like I’ve kept good care of it and replaced consumables as needed. Any idea what could cause this? Thanks

@fewtoes 4 года назад

ground clamp/wire? stinger liner? Oh yah, is the metal clean? Mig/Tig doesn't like scale or rust or oil.

@GregsStoneYard 4 года назад

@@fewtoes I'm no pro welder, but I've had a Miller 185 for 20 years and it started acting up on me. Replaced the liner. Back to normal. Then it started acting up again, so I purchased a new welder. While doing some comparison welds I noticed that the nut that holds the wire onto the ground clamp was lose. Tighten that up, back to perfect welds.

@Sicktrickintuner 4 года назад

You have a shitty connection somewhere. Just fixed one I bought off a guy, it would stick all the time, The gas orafice was toast, so bell mouthed on the contact tip threads it was always loose. Was also missing the set screw to hold the gun liner.

@Sicktrickintuner 4 года назад

Greg9504 Yep i had the factory ground clamp burn up on me. 211A machine and only 6 ga ground cable. When it should have been min 4 or at least 2 ga. Only found the issue when I smelled the rubber at the clamp end wire melting. It also melted the ground clamp bolt that held it on.

@christians131 4 года назад

Thanks for the replies. I roll the machine all around the very bumpy shop floor everyday so that would make sense that a connection has gotten a little loose. I’ll have to check when I go back in