I am more interested in the "input" before the milling. Is it an one piece shell that is already in good form? How would that be made? Milling with good CNC is quite common today, the challenge is to make such size in one piece or as fewer as possible.A precision milled bottom plate for fuel tank. Diameter = 3.35m, thickness = 1mm. In the near future, the production time of such plates will be shortened from three weeks to one week.
Do you have the full set of the presentation? When was it?