Help for sheet metal part

[Quaoar]

One another thing which contributes to the global invalidity of that part (but should not prevent it from unfolding I guess) is that some paired bend faces have exactly the same radius. E.g., faces 37 vs 32 and faces 2 vs 50. A good bend should come with a bigger outer and a smaller inner radius.

[meme2704]

A good bend should come with a bigger outer and a smaller inner radius.

not at all, in sheetmetal works we do not change tools from one fold to another, and the inner and outer radii are obligatorily concentric

[Quaoar]

and the inner and outer radii are obligatorily concentric

Yes, concentric, but radii are different. Just a random picture from web:

[meme2704]

Yes, concentric, but radii are different

Yes just for technocrat who have never seen a press bend even in photo
I have redo the subject, and I have many problems
If I made the chamfer of the central hole = unfold impossible, and it does not want to be done on the final unfold
If I made a gap (to refine the shape) on the second 2 folds at 45 ° they are reversed and I can not dislodge them any more
To make the vertical fold, I was forced to do it after doing the unfold intermediate of the main part (green)
I try to finish at best cutting by removing the superfluous (red), if I subtract the final unfold disappeared and is replaced by the intermediate

[Quaoar]

Yes just for technocrat who have never seen a press bend even in photo

That's geometry man, like it or not.