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A comment on Porsche found a way to 3D-print lightweight pistons that add more horsepower. Parent comment

Re:Porsche found a way to 3D-print lightweight pistons that ... by durkie on Monday July 13, 2020 @09:18PM (#23827550)
My info is a little out of date (~10 years) but I did a MS thesis on aluminum/carbon fiber composites and holy hell are they impossible to produce. There are so many factors that just make these materials not want to go together (similar for Mg / carbon fiber). I would be really surprised to see any real MMC any time soon.
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Re:Porsche found a way to 3D-print lightweight pistons that ... by jasonwatkinspdx on Monday July 13, 2020 @10:03PM (#23827764)
MMC parts are used in quite a few high performance vehicles today, particularly brake rotors. They're still premium parts, but it's stuff you can get from Ford or Honda on their more limited editions.

I know less about it, but as I understand it they're productionized in aerospace now too, again though, just generally for very high spec and price parts.

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