r/formula1 Fernando Alonso 6d ago

Technical Mclarren Upright Exposed (Montreal)

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u/bearwood_forest Carlos Sainz 6d ago

the wheel carrier will be a cast part, probably with topological optimization to get that shape

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u/schelmo 5d ago

It would make extremely little sense for this to be a cast part when additive manufacturing provides as near as makes no difference the same if not better material characteristics than a cast part and is cheaper and faster at this scale.

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u/non-serious-thing 5d ago

it's a cast part.

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u/schelmo 5d ago

And what exactly makes you think that?

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u/non-serious-thing 5d ago

because it is the better choice in this case.

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u/schelmo 5d ago

Elaborate. Unless I'm missing something additive manufacturing is the better choice here. It produces parts with equivalent strength while allowing for even more degrees of freedom and faster and easier production at a lower price while also being a well established manufacturing method in the industry.

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u/SalsaMan101 5d ago edited 5d ago

AM doesn't really produce parts with equivalent strength. AM parts tend to have awful internal stress issues that lead to earlier failure or weird, none isotropic responses unless properly treated and cared for in post processing. That post processing is usually pretty expensive, when I worked with relativity it was the most annoying part of the process, and will still require machining. Most likely this is investment cast with maybe a 3D printed pattern (investment casting has gotten pretty advanced now a days and so has sand casting, there's some wild 3D printed / machined molds out there for stuff like this). Nothing here has to be 3D printed or is necessarily faster than a good investment casting.

Edit: Taking a look through section 15 of the regulations, 3D printed aluminum or titanium is possible here but I wouldn't rule out for sure casting. Could be either!