Below points 1 & 2 are a typical switchboard X section of a internal wall and face. Normally parts 1 & 2 are stitch welded together and a typical length is 2000mm long. That is a lot of stitch welds + a lot of sanding the blisters caused by the welding that need to be smoothed out.
What I did for many years and still use today is X section number 3. Yes it is 1 piece, so no welding or sanding. I takes much less time. It is a impossible shape to bend so a slot (staggered slots along the length) is used. Most of the forming of other folds are done prior to back bending at the slots. Bending at the slots is easily done by hand, then the last fold is bent (as per number 4) and then the slot which was bent by hand is straightened back by hand. The slots are set close enough to each other to allow easy bending. The finished component is stiffer than the original welding technique, and the slots are not seen by the customer as he /she see the face as numbered 3.
This is just an example. You can use technique quite a lot when you design this hand back bending into other parts. My rule of thumb is that there is always another way of doing things
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