big_wasa
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| posted on 4/1/08 at 06:45 PM |
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Welding gas question ?
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
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NigeEss
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| posted on 4/1/08 at 07:03 PM |
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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]
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bonzoronnie
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| posted on 4/1/08 at 07:11 PM |
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Pure Argon & MIG
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 
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jacko
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| posted on 4/1/08 at 07:14 PM |
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No pure argon is not very good in a mig for mild steel but ok for aluminium
Jacko
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Mark Allanson
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| posted on 4/1/08 at 07:21 PM |
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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.
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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thunderace
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| posted on 4/1/08 at 08:56 PM |
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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/
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caber
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| posted on 4/1/08 at 09:25 PM |
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Don't worry, once you get into using the TIG you won't want to use he MIG anymore!
Caber
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big_wasa
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| posted on 4/1/08 at 09:33 PM |
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^^^^
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
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