Makes sense, turbine blades are nowadays a single "crystal" with no seams. The work on it started in te 60s. First application was in the SR-71 Blackbird, nowad

Makes sense, turbine blades are nowadays a single "crystal" with no seams. The work on it started in te 60s. First application was in the SR-71 Blackbird, nowadays even blades for generators are made like this.