I’m needing to make a flat plate of carbon fiber about .090" thick. what i have planned is to use three layers of Carbon Joe’s multiaxial and then two outside cosmetic layers of 2x2 twill c/f.
I’ll post up some results after it is finished…possibly do a step by step to the best of my knowledge.
well the plate infusion went very well. Took 7oz of resin to infuse a plate .080 thick 12"x14". I won’t unbag it until tomorrow evening or so… maybe tonight if i put it in the oven on low temp for an hour.
About core materials… what core can i buy that is about 2 millimeters thick and can be used for infusion?
how about Aeromat or Coremat? I’ve used Coremat & Prepreg to make plates in the past.
can it be used with infusion process? BTW this plate came out awesome… one impression from the resin inlet tube is all.
3 layers of multiaxial and two layers of 2x2 twill came out to .086" thick (2mm) and the side with only multi axial 3 layers came out to .059" thick (1.5mm).
Is the panel quite ridgid?
NidaCore makes some infusion cores. Mostly foam cores with holes/cuts in it to aid the resin movement.
I’ve used their standard PUR foam (poking small holes every sq. in.) and 2 layers of the Saertex multi, and the boards are frikin’ stiff.
Watch out for core mats though, since they will hold tons of resin, and add weight! (unless it’s a special sealed thing Joe was talking about)
Honeycomb is bad, since it will just suck in resin to all the holes!!
Aeromat can be used for infusion. Divinycell will also work. Diab makes a version just for infusion.
Yeah this all sounds very good 
I do need an infusion specific core that won’t soak up much resin at all. Freakin’ strong is what i’m after because these plates will be cut up into brackets that hold larger panels onto a motorcycle frame. Looks don’t matter much because they will be on the backside where they are not seen.
Thanks guys.
pictures of this plate.
deflection tests too!
You may want to try Prepreg. It’s real easy to make strong panels without the mess.
Pictures will have to wait a day ( tomorrow ). I’ll try a test although i don’t know how scientific it will be.
Deflection is AWESOME… very little. Here is what i did.
Got a 4lb jar with a 5" diameter set it on one end of the panel hanging 12" off the table into the air. I set the jar on top as far as i could to the end of the panel. With 12 inches of the plate hanging in mid air, 2 inches were fastened down to a table top. The panel measures 14"x12" so 2"x12" was fastened onto the table top. The weight of the jar caused the panel to flex down 2 inches total.
I left the weight on the panel for one minute with zero damage to the c/f plate. The epoxy is not fully cured in this plate, as the plate was made only 4 days ago.
If you are going to be cutting through the core, watch out for delam between the core and carbon layers. They might get damaged due to not being fully enclosed.