Forged carbon fibre


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StanTheMan
StanTheMan
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I'm not too sure how familiar you guys are with this but thought I'd ask whether anyone has attempted with that technique. As far as I know, this is done with chopped carbon fiber strands under high pressure. At least that's how Audemars Piguet does it with their watches. Recently, Lamborghini started using this method as well for their Sesto Elemento concept cars.  Does anybody have a clue whether this can be done in a home-based environment or you need hi-tech machinery?

Here are some pictures of the products

http://www.carbonfibergear.com/wp-content/uploads/2010/10/lamborghini-sesto-elemento-forged-composite.jpg
http://media.caranddriver.com/images/media/51/the-next-frontier-in-carbon-fiber-forged-composite-inline-1-photo-383038-s-original.jpg
http://www.carbonfibergear.com/wp-content/uploads/2011/03/lamborghini-aventador-forged-composite-emblem.jpg
http://www.fourtitude.com/news/uploads/Lamborghini_News/013__scaled_600_004.jpg
Matthieu Libeert
Matthieu Libeert
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I've heard of it before and seen a video online but it has been removed last time I checked...
They used a steel or aluminium mould (2parts) but some chopped CF in it (I think it was prepreg)
filled the cavity with it, put on the second part on top and pressed it toghetter by bolting everything tight and then put it into an oven...
Didn't look that hightech... 

Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com




StanTheMan
StanTheMan
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Actually, in the last picture I posted, you can see that rolled up thing? That's actually what they put inside the mold and press it with a 1 tonne press...

I was thinking, what if you get chopped carbon fibre, spread it around a mold evenly and do the regular resin infusion. Would that work? or maybe even easier, mix up the chopped carbon fiber with the resin until you get a consistent fluid, sip it in the mold and vacuum it

matthieutje65 (09/10/2013)
I've heard of it before and seen a video online but it has been removed last time I checked...
They used a steel or aluminium mould (2parts) but some chopped CF in it (I think it was prepreg)
filled the cavity with it, put on the second part on top and pressed it toghetter by bolting everything tight and then put it into an oven...
Didn't look that hightech... 

Edited 11 Years Ago by StanTheMan
carbonfibreworks
carbonfibreworks
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I have some used F1 carbon brake discs and the finish is very similar.http://www.youtube.com/watch?v=Gua9egzwjOc
Chris
www.carbonfibreworks.co.uk

http://www.talkcomposites.com/Uploads/Images/97e08777-693c-4af1-a27a-86cf.png
StanTheMan
StanTheMan
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Oh man, carbon-ceramic brakes are another monster of a material. They started using them in conventional cars nowadays as well but it's a totally different material. Forged carbon fibre is mainly being done to reduce costs and production times. A carbon ceramic break system for Audi for example costa north of £15000. 

carbonfibreworks (09/10/2013)
I have some used F1 carbon brake discs and the finish is very similar.http://www.youtube.com/watch?v=Gua9egzwjOc
Chris
www.carbonfibreworks.co.uk

Edited 11 Years Ago by StanTheMan
Matthieu Libeert
Matthieu Libeert
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The process is similar to that video of how it's made, that chris showed us ... the small difference is that they dont "add" a resin but that the resin is allready in the fibers, like Prepreg... then they add heat and pressure 

Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com




SebRS
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I've seen that few months ago, with the seisto element Lambo.

Imagine what this can gives us for Motorsport parts.

I dream for this Forged carbon conrods, Crankshaft, Flywheel, .... and so on!

And what gain for a Carbon Forged engine Block (instead of old cast...)

Oups, i've just woke up! Not for tomorrow i presume!
ajb100
ajb100
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I don't see how this could be used for structural parts though as you've lost any strength through fibre orientation, its basically pre preg CSM
SebRS
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Maybe the production technic is designed for strenght reliability (high pressure, ...)
wojtepanik
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I think there is no way to use cf in any form as engine parts. carbon disc brakes are in fact carbon-ceramic. They are made out of "chips" of cf mixed with sillicone, then they are pressed and put in the oven for bonding everything together. Advantage of cf-ceramic discs is their heat resistance, steel discs work worse when the are hot, cf-ceramic works in every range of temp. sorry for my english, I live in Poland Sad



ps. try mixing chopped cf roving with resing - so it is like a paste, and then put it on the mold and the vaccum bag it? maybe autoclave it if you have, or just bake it in an oven  Smile

~~~Everytime I hear sound of demoulding part I have eargasm~~~
Edited 11 Years Ago by wojtepanik
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