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Blisk
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<p>A blisk (<a href="/facts/Portmanteau/d124JEbz">portmanteau</a> of bladed disk) is a <a href="/facts/Turbomachinery/waJxMQ3Q">turbomachine</a> component comprising both rotor disk and blades as a single part instead of a disk assembled with individual removable blades. Blisks generally have better aerodynamics than conventional rotors with single blades and are lighter. They may be additively manufactured, integrally cast, machined from a solid piece of material, or made by welding individual blades to a rotor disk. The term is used mainly in <a href="/facts/Aerospace/T6kTLUyV">aerospace</a> engine design. <i>Blisks</i> may also be known as integrally bladed rotors (IBR). </p>