aerosam
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| posted on 12/5/09 at 02:47 PM |
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MIG welding with pure argon
Hi guys,
the regulator on my MIG for the little hobby bottles stopped working, so I hooked up the big Argon cylinder I have lying around - left over from my
dead TIG.
Now I can't get a decent weld from it, almost no penetration, very spattery and the wire seems to be melting back into the torch.
I'm guessing I'll just have to go and swap the argon cylinder for a CO2 or mix one, pity though as there is about 50 quid worth of argon
left in it.
Had enough of this dictatorship known as LCB. Gone elsewhere, not coming back. Kiss my ass ChrisW.
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loggyboy
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| posted on 12/5/09 at 02:57 PM |
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Argon for aluminium welding, C02 or mix for steel, thats about it.
So try and sell the argon to someone wanting to weld aluminium
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splitrivet
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| posted on 12/5/09 at 03:07 PM |
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Shame your in S Wales I would have swapped you for a big bottle of CO2 mix.
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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hughpinder
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| posted on 12/5/09 at 03:30 PM |
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I've used pureshield argon and argoshield light to weld steel without major problems. (Both have some C02) Pure argon can be used, the weld is
slightly taller and narrower, and does 'wander' a bit, but it should still give a decent weld. It sounds as if the gas flow is too
low/regulator not working.
Regards
Hugh
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aerosam
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| posted on 12/5/09 at 05:33 PM |
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Sorry splitrivet it's a rental cylinder anyway.
Hugh, I've tried upping the flow right up to 13L/min, then the wire just forms droplets of metal which drip onto the workpiece. Dropping it
really low to about 2L/min and it blows bird poo type welds.
Had enough of this dictatorship known as LCB. Gone elsewhere, not coming back. Kiss my ass ChrisW.
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splitrivet
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| posted on 12/5/09 at 11:36 PM |
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Is the TIG terminal, cant you get it fixed.
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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aerosam
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| posted on 13/5/09 at 08:27 AM |
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hi frequency arc start stuck permanently on, that I could live with, but when I tried it again yesterday the gas solenoid was playing up and I blew
some lovely big holes in things.
It's a cheapy chinese import, looks like a case of getting what you pay for.
Had enough of this dictatorship known as LCB. Gone elsewhere, not coming back. Kiss my ass ChrisW.
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