Robots are just 1 factor in shipbuilding. The augmented reality also improve productivity marginally when used in isolation.
Both are in place at some of the SK yards.
The digital revolution I am referring to is in terms of management, command and control if you would. Imagine the yards planning out the entire work digitally, emphasizing data integrity by using QR/bar code systems and eliminating manual inputs at all phases, optimizing the sequencing through engineering phase to ensure drawing schedule, and component delivery is considered, and updated live throughout construction so workforce can be deployed to all work fronts (This is where the robots come in, they are good at certain works, while others should be done manually) to make sure schedule is met and productivity is maximized. Knowing exactly where every drawing is, where every part is, what every worker should be working on and where every open work front is, live in the management office, with AI helping to assign tasks and direct work, and the data integrated into 3D model (yes this is when augmented reality comes in). This is the true force multiplier. Not only are you more efficient, you can also react better when some things goes to shit.
You gotta see it in action to actually feel the scale of change this brings. Everyone got a little bit of the above here and there, the trick is to have them all and integrated. Not all Chinese yard can do all this. I've seen 1, with 2 other very close, and another I would say 70% there. The trend is clearly heading that way! Commercially the cost difference is jaw dropping..... (both in $ / ton AND mhrs / ton)