Hello,
I want to make a complex structure composed of a carbon fiber, Aluminum honeycomb sandwich structure resin infusion. My problem is that while applying resin infusion I want to ensure that the carbon fiber sticks the aluminum honeycomb and at the same time ensure that the amount of epoxy entering the honeycomb is minimum. Can someone please help. Note: putting the honeycomb above the carbon fiber is not an option in my case.
Best regards,
Hadi ElKoshairy

can you bond the honeycomb on after you have cured the skins?

Yeh you simply can't use honeycomb in an infusion process, it has to be bonded on after the infused skin(s) have cured.

+x

 

scottracing - 10/18/2019 8:50:26 PM

can you bond the honeycomb on after you have cured the skins?

No

+x

 

Hanaldo - 10/18/2019 9:04:56 PM

Yeh you simply can't use honeycomb in an infusion process, it has to be bonded on after the infused skin(s) have cured.

Is there a way where you can put a layer over the honeycomb to ensure that no resin will enter during the infusion process??

Not really. Why can't you bond the core to the skins after curing? 

Honeycomb just isn't going to work in a single shot infusion process, you either need to find a way to do it as a multi-shot process or you need to choose a core suitable for infusion.

Of course, there's several. Lantor Soric is good for infusion, but it's quite heavy. 3D PET core is similar, but almost half the weight of Soric. PVC core can be used if it is drilled and scored for flow. Corecork is my pick for infusion, but it depends on the application.