How does one make a rounded type bend using solidworks Sheetmetal tools?

You can do it this way but it will not produce a flat pattern:

  1. Step 1:

    1.draw a circle with the desired diameter and create a base flange.

  2. Step 2:

    2. Make an edge flange with the desired radius

  3. Step 3:

    3. Cut the top surface with a normal cut.

  4. Step 4:

    4. draw a profile for the cut and make a normal cut on both sides.

  5. Step 5:

    Make a circpattern of the cut.