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A compressor rotor wheel construction and a method of making same is provided which includes a blade portion of heat-resistant metallic material, a rotor disk portion made of a high-strength metallic material, and a steel spacer ring arrangement connecting the blade and rotor disk portions. The stee

A compressor rotor wheel construction and a method of making same is provided which includes a blade portion of heat-resistant metallic material, a rotor disk portion made of a high-strength metallic material, and a steel spacer ring arrangement connecting the blade and rotor disk portions. The steel spacer rings are connected by explosion welding to the blade portion, are then finish machined, as is the rotor portion, and then the spacer rings are connected respectively to the rotor disk portion by brazing or welding.

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Compressor rotor wheel, such as a centrifugal compressor rotor wheel for turbomachines, the blade portions of which are made of a heat-resistant metallic material and the rotor disk portions of which are made of a high-strength metallic material, where a coaxially extending steel connection is provi

Compressor rotor wheel, such as a centrifugal compressor rotor wheel for turbomachines, the blade portions of which are made of a heat-resistant metallic material and the rotor disk portions of which are made of a high-strength metallic material, where a coaxially extending steel connection is provided between the blade portion and the rotor disk portion, characterized in that as the steel connection a spacer ring of steel is provided which is connected on the one side to the blade portion by explosion welding and on the other side to the rotor disk portion by brazing or welding, and characterized in that the rotor wheel region is manufactured as an integral part and essentially consists of a shell carrying the centrifugal compressor blades, where the steel connections containing the spacer rings are respectively provided at at least two axially and radially spaced-apart points associated with each of which are radially aligned rotor disk sections.