Talk Composites - The Forum for Advanced Composites

Cylinder mold need help😀

http://www.talkcomposites.com/Topic15127.aspx

By Featherlite - 2/18/2015 9:34:55 PM

Hello all. 

I need suggestions on how to create a mold for this project. The cylinder is 6 " wide, 36" long. It more of an oval shape, not a perfect circle.  I'm stuck on a few design issues. 

1:  If  I make a split mold, I will end up with two seams that I would prefer not to have.
2: If I use a single mold, and wrap the carbon around it, I end up with the inside of the tube with the nice finished surface 
That will be hidden anyway.

To make a cylinder, one piece, with the nice outside finish exposed, how should I make my mold? Im going too buy product's soon, prepreg or infusion??? How would you do it? Thxs for the  suggestion's! 
By ChrisR - 2/19/2015 8:42:06 AM

Hi, If you do go prepreg then I would consider an external split mould, layup each side with a lap at each layer into the other mould then put a pressure bladder down the middle and blow it up then cook for however long you need to with the prepreg you have.