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Welding Cast Aluminum Question
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Dennieburke17
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    Sat Dec 15, 2018 11:01 pm

I am welding a piece of 6061 billet aluminum to a cast aluminum swinging arm for a motorcycle. What rod should I use?
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cj737
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    Thu Sep 29, 2016 8:59 am

I like 5356, but 4043 also works.
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cj737 wrote:I like 5356, but 4043 also works.
Why 5336? Not picking on you, just respect your answers!
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" Anything that carries your livelihood wants to be welded so that Thor can’t break it."
CJ737
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cj737
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tungstendipper wrote:
cj737 wrote:I like 5356, but 4043 also works.
Why 5336? Not picking on you, just respect your answers!
5356 is stronger, handles heat a bit better, and I get less porosity welding to cast with it. Has a less grainy finish under high heat applications too. But as I said, 4043 works well too. I’ve used both, but I now tend to grab 5356 for cast, 4943 is quickly replacing 4043 in my racks.
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Zeko
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I'm just finish one of my repairs. I't was a 25mm(1") thick cast aluminium part. It takes more than 20 hours to finish. I'm using 5356 filler and it works pretty good. Lots of porositi in material makes me creazy. I was about 195A. 40% cleaning ( it could be 35 but electrode 3,2mm can't handle). 2,4mm feeding rod. Today I have big piece of cast iron to weld. I will use 2,5 mm NiFe stick for that job.
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