RE:Sheet Metal??

yes, as long as the sheetmetal feature has a vertical straight edge to grab.

Insert --> Sheet metal --> Bends

Didn't work. This is a true tube with no vertical or horizontal walls. I made a sketch on the right plane and inserted an axis on the origan. I then revolved the sketch around the axis. Since I didn't have a true surface to work with, I made a sketch of the fingers on the top plane, offset cut extrude to make the resultant fingers in the tube. Because the finger sketch is on either side of the origin the only vertical surfaces I have now are the ends of the fingers. When I inest>sheet metal>bends and pick the vertical surfaces of the fingers, SWX informs me that "No bends are found" and "This process-bend feature failed due to the failure of the flatten-bends3" What's Wrong tells me the feature is inapproprate and to pick the top or bottom surface BUT they're curved.

I would appear that us>Insert --> Sheet metal --> Bends

yes, it can you will need to leave a small straight edge though.