I need to give hem on curved sheet.
Please find attached file and image.
I tried my above steps and the revolve-thin edges don't convert into edges that a hem can use.
Also tried adding a tangent tab but these didn't merge.
So I added an edge flange to each end.
Also, to get the revolve angle, I used a chordal equation with the given data:
This workflow isn't stable when changing the flange data, but it does flatten
I hope this helps.
Did you tried as Lofted Bend?
I'm not in front of SW today, so I can't see how you developed your curve.
But my preferred workflow for creating curved sheet metal, such as for your part, is to start with a Thin-Revolve then convert this using Insert Bends.
This is the workflow I would attempt but it is untested, but I hope it helps.
I forgot to mention to watch your hem parameters if the hem is on the inner face as you may get intersection errors if the hem radius and length are such that the hem is within the arc portion.
Also, I'm assuming this will be fabricated with the curve first, then the hemming.
If so, the hem material will be curved as well and when bent, the hem portion will arc toward the inside face for an inner hem or arc away from the outer face for an outer hem.
Either way, you may eliminate the curvature at the hems if you flatten the hems (effectively changing your continuous arc into an arc with tangential lines on each end).
Thinking on this, you could alter your workflow to shorten the arc angle enough to add two tangent line hems.
Then on your shorten curved metal, add a tab (just long enough for the hem) and a hem on one end and mirror them to the other end of the curve (about a mid-plane palne created from the thin revolve end faces).
Draw the curve in one sketch to be used as a path and draw profile including hem in other sketch to be used as a profile. Now use swept flange tool from sheet metal toolbar.
Note: profile should be connected with path.
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