If they could do a 3DOF system with larger build volume, they could make
custom filament wound pressure vessels.
On 2018-04-18 10:01 PM, Jonathan Goff wrote:
Lars,
I met the CEO of a company late last year that is doing 3d printing of continuous fiber composites (http://www.mantiscomposites.com/index.html). I think they're doing either PEEK or Ultem matrix with continuous carbon fiber. Their printer is 5DOF to enable fiber placement in structurally optimized orientations. I think they have software to help with optimizing fiber orientations, and to help estimate performance of the completed parts. I haven't personally used them for any parts yet, but am hoping to try them out sometime this year.
~Jon
On Sun, Apr 15, 2018 at 11:42 PM, Lars Osborne <lars.osborne@xxxxxxxxx <mailto:lars.osborne@xxxxxxxxx>> wrote:
It's a good thing. But as I understand it is limited to
omnidirectional short fibers?
They can be useful, and as launch costs come down it will make
sense to use techniques like this but it isn't going to eliminate
directional CFRP in the big important structures or be used to
make COPV's in one shot. It might be a neat way to make a COPV
liner, however.
Lars
Thanks,
Lars Osborne
On Sun, Apr 15, 2018 at 9:36 PM, <gandalf@xxxxxxxxxxx
<mailto:gandalf@xxxxxxxxxxx>> wrote:
Greetings and Salutations:
Interesting article I found. BMW has figured out how to use
injection molding to make a motorcycle Carbon Fiber swingarm,
allowing it to be made in minutes rather than hours. I think
that this has huge ramifications in Aerospace:
https://www.topspeed.com/motorcycles/motorcycle-news/bmw-finds-a-cheaper-way-to-manufacture-carbon-fiber-ar180673.html
<https://www.topspeed.com/motorcycles/motorcycle-news/bmw-finds-a-cheaper-way-to-manufacture-carbon-fiber-ar180673.html>
They could mold out large chunks of structure with high
strength from what the article implies. Of course they will
have to prove out the strength of the material.
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