I recall an FO correcting me when I said that the leading edges of a BAC 1-11 wing were then 'taken to another location and annealed.' He explained the difference between annealing and normalizing.
Wasn't there mention earlier in the thread about the casting of Pickle Forks? I took the answers to mean, originally they were milled from the solid, but later cast with substantial oversize and then milled down to size. I know the metal cad be recovered, but the effects on the finished casting are serious science. I'm given to understand that even the way a hole is drilled is incredibly critical; the speed and sharpness of the tip being stipulated by the boffins.