Not directly it's just a surface - but with some work (thicken, cleanup, convert with local selection). However, the sheet metal application will not be able to flatten the curved section. Once converted you can add sheet metal features to the straight segments.
Attached part is 12.0.2.
with meta form command, is it possible to obtain a flat-pattern curve for cut machine ?
.... And if you have the license, forming flattening works well.
yes, forming flattening works well. I've beta license....