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Discussion Starter · #1 ·
I would like someone to pitch in here. I would like to know what the best filler metal to work with is for welding cast aluminum parts. I would want to use a fillter metal that is the strongest and easiest to weld. I would appreciate any input...thanks
 

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The Wilwood Brakes Dude
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When you say wire I assume you have a spool gun. If not then you should always TIG it if you have the option. Then it you TIG it you would be using rod, and in that case you would have alot of options. on 6061 Use 5356 filler rod for max strength, Use 4043 filler rod for max corrosion resistance. But in most cases the cast you are welding to is mystery metal so make sure you practice in an inconspicuous place if there are problems.
 

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Discussion Starter · #5 ·
thanks for the reply...what was i really asking was what alloy grade of filler metal...aka welding wire. I have read 4xxx series is the easiest to weld on any cast alum parts so I guess ill go with that :bigthumb:

I am using a mig welder btw
 

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Supra Fan
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I found that welding aluminum with my buddys mig was a nightmare. the spool kept getting caught up in the line. what a pian.
 
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