CURVED / SADDLE WASHER MODELING WITH SHEET-METAL TOOL

I'd love to see a curved washer modeled with the sheet-metal tool. 

I'm actually looking for a robust method of creating vessel nozzle reinforcement pads with a consistent width...And that can be flattened.

I would like to you use the same method / procedure for creating rectangular re-pads and other shapes.

Please post models and / or links to tutorials.l

Thanks a bunch!

Julian

SolidworksSheet Metal