Partial cuts for folding

I saw a video of a guy that did some partial outline cuts for bending up metal trays. He used a circular saw with metal blade, and set the depth of cut to not go all the way through the metal, thereby being able to create a solid pan. I have seen bendable cuts for the plasma but they are segmented through cuts. Without yet experimenting, could one burn clean bending lines with our plasma cutters? TIA

Maybe some heavy marking may have a similar effect

I recently did too , metal drawers for a wooden chest video.