08-15-2011, 01:29 AM
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CC Member
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Join Date: Jun 2009
Location: Sydney,
NSW
Cobra Make, Engine: RCM, Jag front and rear, LS3
Posts: 1,640
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Not Ranked
Im no expert, but can achieve a reasonable weld with mig on Al.
You need to move fast and have the wire feed super fast. Al heats up really quickly (hence why it is used as a heat sink). You will find it working perfectly and then all of a sudden you blow through. Depending on the thickness i do about 12inch lengths.
You also need to push the weld and keep it at a bit more distance then you would with mild. This is important and may be your problem that you are holding the tip too close. You are trying to achieve a spray transfer rather than the conventional weld pool.
It shouldnt be too hard, i tought myself in a couple of hours just messing around with different settings.
Last edited by Zedn; 08-15-2011 at 05:19 AM..
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