SAS decision making, wife isn't helping - Page 2 - Ford Bronco Forum
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post #21 of 23 (permalink) Old 04-08-2017, 03:27 PM
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Originally Posted by votum View Post
the radius arms will be aluminum

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post #22 of 23 (permalink) Old 04-10-2017, 07:55 AM Thread Starter
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Originally Posted by BoulderBronco View Post

That's what I said too, the guy said he's been doing them for awhile, and they are milled not cast, so theoretically they would be stronger than steel. I'm just curious how strong any joints will be. It makes sense I suppose, because aluminum is what they use in cars for radius/control arms (well its a performance upgrade).

If they break he'll make me a steel set lol.

I ended up doing a lot of research on steel vs aluminum, and aluminum needs to be thicker than steel to win, but it wins pretty handily in all categories other than fatigue, and radius arms aren't a huge fatigue spot on a vehicle. The fatigue I'm talking about is vibration. So a 1" steel plate is strong, but a 1.5" aluminum plate is something like 20% strong and still weighs 50% less. It really depends on the grades though, and these days high grade aluminums and alloys can be stronger than steel with the same volume.

Last edited by votum; 04-10-2017 at 08:25 AM.
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post #23 of 23 (permalink) Old 04-10-2017, 12:37 PM
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I know they build links out of aluminum for rock crawlers because it has a memory and if if bends it will go back to its shape, but milling out a radius must be rather pricey.
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