Talk Composites - The Forum for Advanced Composites

How to Rolled Edges?

http://www.talkcomposites.com/Topic9309.aspx

By 20_rc51_00 - 1/20/2014 5:11:44 PM

The search led me nowhere. 

Any input on how to get nice rolled edges on a part? 

Does it require prepreg or can it be done with infusion?

I'm guessing it requires a curvature backward at the edge. That would mean the part might be locked into the mold once cured if it involves the entire perimeter of a part, thus needing a multipiece mold. Perhaps a removable flange portion that provides the rolled edge once mated  with the actual perimeter flange?

another option could be a silicone based flexible perimeter that is one with the actual mold that would allow release without the need for more removable multipiece molds. 

Any insight?
By 20_rc51_00 - 1/23/2014 4:54:52 PM

Thanks for the reply, I suppose that's all there is to it. I have seen rolled edges that go almost as much as 180 degrees and thus it would just necessitate being crafty with a multipiece mold for releasing the part....