Originally Posted by Yellow Pig
Since I know I'm not the only one that had to look it up:
A blisk (or bladed disk) is a single engine component consisting of a rotor disk and blades, which may be either integrally cast, machined from a solid piece of material, or made by welding individual blades to the rotor disk. The term is used mainly in aerospace engine design. The word is a portmanteau of blade and disk, the two components it replaces in turbomachinery. Blisks may also be known as integrally bladed rotors (IBR).
Sorry about that...i don't even think about these terms anymore. We have the blisk forged, then they do the final machine work on it. My place of work supplies the blades that go on it...they get friction welded in place. Very cool stuff