Pedantic mode: MIG is Metal Inert Gas meaning an inert gas that doesn't react "much" with the weld pool. MAG is with an active gas, that does react with the weld pool.

@ypaulbrown

3 ай бұрын

Perius, the modern term for MIG welding that the AWS recognizes is GMAW, Gas Metal Arc Welding, MIG is now considered an outdated term or slang term.... as there are many gas combinations that can be used for GMAW, that is the reason for the change. Originally GMAW was done with Argon and then the scientists at Batelle Labs found that they could use CO2 or a combination of the two gases.....There are even combinations of Argon and Oxygen.. MAG is a term used in Europe. Hope this helps, Paul

@MegaSpartan007

3 ай бұрын

In France, if you say MIG, you're using pure argon and welding aluminium. And if you say MAG, you're using argon+CO2 and welding steel/stainless.

You can use pure argon but the setting are very different from c25 or co2. If you don't change you get bad welds.

Thanks for this tiny thread of information about shielding gases. I wasn’t ever taught about this, but I do remember that we used a Hydrogen gas mixture to weld boilers so long ago that I can not remember the mixture used I believe it might have been Argon and the welds were supper clean. No spatter and HAZ was limited to a minimum with perfect penetration.

As a newbee to MIG, you confirmed what I observed using 100% Argon. Weld was terrible! I knew something was wrong. Then I noticed the gas was 100% argon and not a mix. Other less knowledgable guys told me it was no big deal. Wrong! I switched to a 75/25 gas and will try it as soon as it stops raining here. Thanks so much!

100% argon works with metal core pretty well with settings turned up for spray transfer

That stick out was crazy! 😂

Since the pure argon weld looked cold, could you correct for that if you added more heat (amperage?) to counteract that effect?

@traianima

3 ай бұрын

would also like to know that

@NikeaTiber

3 ай бұрын

Your arc length increases to the point where the arc is even more erratic and it also increases the chances of freezing your contact tip. This problem is for the short circuit transfer mode mostly; the increased arc length and heat burn away electrode faster than you can feed it, and turning up your feed speed to compensate doesn't really work as the extra electrode soaks up the heat, leaving you with the same problem you started with, just with a larger resulting bead. At a certain point the weld will pull enough amps to enter spray transfer, at which point you are fine, but the stock thickness needs to be sufficient to dissipate the extra heat without blowing through. As I recall, with .035 wire the required amperage to enter axial spray transfer on pure argon is around 200-220. If I'm doing short circuit on carbon steel I actually prefer to use 100% CO² The spatter sucks but I like the aggressive arc and deep penetration. I have a two bottle setup on my welder, my other gas being 95AR 2OX 3CO2, which I use for spray transfer. On .035 wire you enter spray transfer at around 180 amps using that gas mixture.

I do it with aluminum every day at work straight argon with mig been doing it many years only use 75/25 on x-ray butts and they pass 100% every time

@dieseldabz7104

3 ай бұрын

Yup same here you are correct, I've been doing it just over 3 decades now and on heavy equipment and trucking industry so welds need to hold.

@NikeaTiber

3 ай бұрын

Aluminum mig is a completely different ballgame than steel. Aluminum requires 100% inert gas. This means either argon or helium. Aluminum is too reactive when molten to use anything other than an inert gas. You aren't passing an x ray on aluminum if any reactive gas made its way into your gas envelope.

@redwelder

3 ай бұрын

@@NikeaTiberi weld with steel exactly the same no problems

Great video, I work at a shop that does production high end mig and tig welding. We use 70 25 for mig, but for the last few months our mig welders have been running different. We've had to turn the volts up higher and the wire speed down from our normal setting to still get a nice bead. At our normal settings the welder will pop everytime we push the weld back into the puddle and the beads will have ripples in them. Like I said adjusting the settings hotter and slower seems to help a little with those issues and leave a smoother bead. Could this be a result a too much argon in the bottle, maybe even tho it says 75/25, it might be closer to 85/15. It welds almost like there is too much argon, but not sure if there's any way to actually test the percentage of gas in the bottles, I'm not sure how accurately these companies fill up their bottles, thanks.

Course you can. I do it fairly regularly. Not cheap, but its usually when i havent got any c25 left. 😂 Works just fine as long as its only on thin stuff.

The higher the percentage of argon used in the weld gas usually means your welding some high tensile strength steels. Then you need different certs for said wires and metal thicknesses.

@Welddotcom

3 ай бұрын

Thanks for the info!

Absolutely 100% Argon for mig welding with ERCuSi-A Silicon Bronze wire and Aluminum.

So I got my first mug setup and got a bottle of 75/25. My receipt even showed that’s what I paid for.. fast forward, I can’t figure out what I’m doing wrong. Come to realize the bottle only said “argon” on the label. Looked the label up, sure enough it’s pure argon. Fortunately they swapped me out no charge.. $260 bottle and here I’m thinking this used welder is just that I bought

Ive done it to finish a non structural weld. It'll put metal down but thats about it.

I wish you had also compared with no shield gas at all

I did it when i was at tafe (trade school) turned on the wrong gas tap...... Used it all day..... My 3f was so bad then the teacher came and had a look..... Changed the gas then my 3f was the best in the class

Ok now do that again using pulse mig !

u should try dual shield but with 100% argon. I wonder how that would work with the flux shielding it.

I just blow on my weld puddle, beer fumes remove the oxygen😅

Any tips on doing dual shield welding with a lincoln 210mp? Thanks for the content.

@ypaulbrown

3 ай бұрын

Higher Voltage and wire feed speed....the duty cycle on the 210MP will be short. and the type of Gas will effect the process also....some wires are recommended for you to 75/25 ar-co2....but will run on co2....check with the wire manufacturer... with enough voltage and wire speed [usually above 27 volts] you will get into the Axial Spray Transfer mode, a very fast and hot weld pool....not good for thin materials or out of position.......

@GaryForgingOn

3 ай бұрын

@@ypaulbrown Thank you

I tried to prove myself that I could, but its day and night when you switch back to CO

How about 75/25 vs 92/8 on mild and stainless?

@dieseldabz7104

3 ай бұрын

I've been welding for 32 yrs and always used a 75/25 mix for MIG welding steel. Believe used pure for stainless and aluminum only.

@MegaSpartan007

3 ай бұрын

Pure for aluminium and 2% CO2 for stainless.

Please try aluminium and stainless on argonmix as well. Most common here in sweden is 82/18 argonmix. :)

@ypaulbrown

3 ай бұрын

Aluminum is straight Argon, or Argon and Helium, which is very expensive and may not be readily aviable to you in Sweden....Stainless [INOX] is a very sluggish weld pool and has a hard time wetting out... when mixed with CO2, you will get carbide precipitation [carbon between the grains] which causes corrosion and brittleness.....by adding 90% Helium to 7.5 % argon and 2.5 percent CO2, you have a misture that gives more energy to the arc and helps wet out the weld pool....but again, due to the Helium, it is very expensive..... You can do Axial Spray Transfer with 98% Argon and 2% O2 [Oxygen] and it works great on thicker material, and if corrosion resistance and carbide precipitation is not a critical issue, but 2% CO2 can replace the O2... Hope this helps....Paul 'Paulie'Brown from Weld .Com

100% argon is used with aluminum wire folks that’s it. In tig 100% argon is used for everything

idk my only mig welder was never used for mig it was only for aluminum and the other welder is for flux. i once test flux on aluminum, it did weld and stay on there

@dieseldabz7104

3 ай бұрын

I MIG aluminum with pure Argon have for many years

Well being that CO2 and Ar have different thermal conductivities (CO2 is way higher than Ar) and different heat capacities, you would need to change the settings to match the changes based on just that alone. Failure to do so is just trying to make it fail on purpose.

@NikeaTiber

3 ай бұрын

It is more than just that, the main thing being ionization of the gas and how that influences the electricity jumping the gap. In short circuit mig pure argon will give you poor results no matter how much you adjust your amperage and feed rate. This problem goes away once you enter spray transfer amperage, provided your stock thickness is sufficient to take the additional heat without blowing through.

I seem to only be able to get 95/5 and it seems to be OK.

@brencostigan

3 ай бұрын

That’s all I can buy in the U.K. 95% Argon; 5% CO2. Works fine

How about a video on how to mig weld outside you dont see videos like that, and alot of us dont have a shop or garage

@bradybaldwin4974

3 ай бұрын

Cover up and keep the wind away that’s about all there is to that.

Hopefully, because that's all I use lol

@ZAPATTUBE

3 ай бұрын

SAME HERE

Sg2 ile ileri gidilir diye biliyorum dostum hey sen ne yapıyorsun

If you can find and afford it, I'd sure be curious to see what pure helium does.

Active gas like CO2 allows a lot of penetration in Mag mode and in Mig mode 100% Inert gas is for Aluminium and Stainless. Please

Only thing MIG with Argon was aluminum

You can but its expensive .

@melgross

3 ай бұрын

I do use 309L on A 36 often. Not talking anything for inspection or real structural as I’m retired. But you can use 309L for steel. I also found that 75/25 is ok, but pure argon is better. Not much, but a bit. Settings with 309L on steel aren’t going to be found so you have do your experiment. After that, it’s fine. Just notice that grinding stainless welds is very different than grinding steel welds.

Slap It in spray

Bro. you're talking about MAG. If you use 100% argon or Helium then it's MIG (Metal Innert Gas ) . MIG is with pure innert gas, that's in the name of the process. MAG (Metal Active Gas) is with active gas (o2, co2) "Can You Mig Weld With 100% Argon?" ..... semi-auto with 100% argon is called MIG. If you don't want to do the correct naming then call it GMAW

Lol I know someone who worked for a company that would mig weld with 100 argon and they refused to use the right equipment with it and people almost died

We run 90/10 at our shop for spray transfer

i see scheduled upload i press dislike

I've done it by accident, doesn't work well.

@sumduma55

3 ай бұрын

I've done it on too... I thought my welder was trashed.