I'm trying to work out a couple of issues with a CF piece that needs to have a piece of wood designed INTO it.  The wood is needed to be an attachment point to allow other wood pieces to be screwed to the CF piece. 

This might be a little hard to explain - imagine you're making a simple, flat CF plate, and in between some of the layers of fabric is a 1"x1" piece of wood running the length of the plate.  In other words, the mold side of the plate is completely smooth, and the vacuum bag side will have the wood structure (wrapped with CF) sticking out.  The top layers of CF fabric would be formed tightly around the wood.  The part will be part of a lightweight structural system, and won't be carrying a lot of load (the CF alone would probably support the load without the wood).  I will use epoxy resin. 

First questions have to do with the wood:  Will infusion epoxy bond to any soft wood, and would the wood need to be pre-treated?  I'm slightly worried about the wood delaminating inside the CF.

Second question is about infusion:  How can I get the resin to infuse all sides of the wood, i.e. up and over the top as well as under?  My fear is that it will want to just take the path of least resistance (or the shortest path) and not infuse all the way around the wood and just go underneath it.  With that said, would it be possible to lay some wet resin over the wood before infusing?  Or will I just have to settle with a wet lay vacuum bagging set-up instead of vacuum infusion?

Thank you for your help.

On the face of it, I can't see using wood as a core being any different to foam, providing that you aren't using heat or prepreg.  Wood doesn't like hot, or even warm temps as it will dispel all of its moisture into either the composite, the vacuum pump oil or both.

No problems really, but it is a good idea to seal the wood first as it will release a lot of air and absorb ALOT of resin under vacuum. Just give it a coat of resin and allow it to cure, then give it a scuff with 80 or 120 grit before placing it in your layup.

If the wood is only 1"x1" then the resin should infuse around it without a drama. If you go any bigger than 2"x2" with the wood then you will want to drill some holes to allow resin through.