There is one ultimate guide about press brake, it mentioned everything about press brake as well as the bending operation, hope it can be helpful for you. Here is it: https://machinemfg.com/press-brake-ultimate-guide/
Here an example of my sheet metal workflow for parametrics parts
The workfloor is :
1 - Simple 2D part's drawing . ( complex part's can be import from SOLVESPACE )
2 - Part's extrusion
3 - Part's 3D connection/assembly with junctions .
4 - Final boolean union
5 - Layout with Make2D4Views function
6 - 3D part's export in STEP , SKP ...
7 - Layout export in PDF