{HEAD ~ Method} of producing {TAIL ~ an integrally bladed rotor} from a forged disc material and a single crystal blade material with the disc material having a softening temperature which is less than the blade softening temperature including the steps of: 
of producing
{ HEAD ~ Method } of producing { TAIL ~ an integrally bladed rotor } from a forged disc material and a single crystal blade material with the disc material having a softening temperature which is less than the blade softening temperature including the steps of :
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