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Welding gas question ?
big_wasa - 4/1/08 at 06:45 PM

Ive just bought a Tig so im going to have to bite the bullet and get pure Argon.

Can I use this in my Mig ? as I dont want to have two rentals on the go at the same time .

Cheers


NigeEss - 4/1/08 at 07:03 PM

Yep not ideal but works , but as Argon is so expensive I keep it for the TIG and use brewery gas for MIG.
Not the best I know but it's cheeep



[Edited on 4/1/08 by NigeEss]


bonzoronnie - 4/1/08 at 07:11 PM

You can use pure argon in the MIG welder but it is an awfull waste of expensive gas.

I personally would not reccomend the use of pure Argon in the welding of mild steel with a MIG welder.

You will also notice a difference in your visibility untill you get used to it.

CO2 might be a cheaper alternative for you.

Ronnie


jacko - 4/1/08 at 07:14 PM

No pure argon is not very good in a mig for mild steel but ok for aluminium
Jacko


Mark Allanson - 4/1/08 at 07:21 PM

Using pure argon in a mig will reduce the penetration, the mig relies in a certain amount of burn to get the correct levels of penetration and from memory, some mixes actually contain O2. Someone with a bit more contemporary knowlege can confirm.


thunderace - 4/1/08 at 08:56 PM

i have used a pub bottle for years for my mig and can say im 100% happy with it .
i also use Argon/CO2 mix.

all the info you need is here

http://www.mig-welding.co.uk/


caber - 4/1/08 at 09:25 PM

Don't worry, once you get into using the TIG you won't want to use he MIG anymore!

Caber


big_wasa - 4/1/08 at 09:33 PM

^^^^

Hmm maybe I could go back to using Co2 for the mig.......

Ok I have Argon shield Universal, I asume I need Pureshield Argon from Boc ?

Cheers for the replies