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Using CO2/argon instead of CO2
tegwin - 30/4/08 at 10:29 AM

I am half way though welding ons some chassis bracing....My darn CO2 cylinder has run out!

I have half a cylinder of CO2/Argon mix from machine mart sat in the garage.....can I continue welding with that, or will the welds be weakened?


Jon Ison - 30/4/08 at 10:33 AM

I think you will find it will put a better weld down as I find the argon/Co2 mix much easier to weld with. As for strength 99.9% of fab shops I have seen use argon/Co2 mix for welding carbon/mild steel.


Paul TigerB6 - 30/4/08 at 10:40 AM

As above - i always use CO2 / Argon mix as i find it much better for mild steel.


Mr Whippy - 30/4/08 at 10:45 AM

same here, that's why I'm using it Argoshield is what the gas I'm using is called.


907 - 30/4/08 at 10:54 AM

quote:
Originally posted by Mr Whippy
same here, that's why I'm using it Argoshield is what the gas I'm using is called.



I thought you were building a garage Mr Whippy?

Don't tell me your adding it to the concrete mix to make it go further?


Paul G


stevebubs - 30/4/08 at 10:54 AM

Welds are most likely to be stronger and cleaner....


big_wasa - 30/4/08 at 11:01 AM

Once you have used Argoshield you will not want to go back to co2 unless you are very tight.

[Edited on 30/4/08 by big_wasa]


Peteff - 30/4/08 at 11:55 AM

CO2 is usually used on thicker section steel for more penetration, you'll do a better job on chassis section with the argon mix. You may find you need to alter your settings a bit, wire speed and voltage run lower on mine with argon/CO2 than pure CO2 and there is a lot less spatter.


Mr Whippy - 30/4/08 at 12:09 PM

quote:
Originally posted by 907
quote:
Originally posted by Mr Whippy
same here, that's why I'm using it Argoshield is what the gas I'm using is called.



I thought you were building a garage Mr Whippy?

Don't tell me your adding it to the concrete mix to make it go further?


Paul G


another garage


David Jenkins - 30/4/08 at 12:12 PM

I learnt to weld with Argoshield, and was startled when I eventually tried CO2 - everything was so much more 'lively'!

The argoshield gives a 'softer' arc that's pleasant to use, and negligable spatter (as pete says).

You will have to mess around with settings though (maybe turn the wick up a bit).


Mole - 30/4/08 at 12:36 PM

On my welder the wire welds itself to the tip when I have tried to use argon / co2. Shame because it gives a lovely stable arc.


RazMan - 30/4/08 at 01:17 PM

I ran out of Argoshield and was forced to use CO2 - I was surprised how crackly it was - a much harder arc.


IDONTBELEIVEIT - 30/4/08 at 05:23 PM

co2/ argon mix all day long,co2 only gives a colder weld and more brittle


BenB - 30/4/08 at 05:54 PM

I quite like a CO2 shield. But then that's because my Mig90 is a bit marginal on penetration and CO2 is better in that respect than Argon/CO2. With Argon/CO2 I get a very nice looking weld sat on top of the piece to be welded!!!!! And that's regardless of wire speed / power settings....


rusty nuts - 30/4/08 at 06:02 PM

quote:
Originally posted by Mole
On my welder the wire welds itself to the tip when I have tried to use argon / co2. Shame because it gives a lovely stable arc.


Sounds like the wire speed is too low.