Compressor wheel arrangement and method for the production of a compressor wheel arrangement

A method for the manufacture of a compressor wheel arrangement for an electrically powered turbocharger, comprising:

• forming a blank by the assembly of a first component made of a first metallic material and a second component made of a second metallic material, so that the second component extends along a longitudinal axis of the blank,
• processing the blank via material-removing method steps in the same clamping device for the manufacture of a compressor wheel with a shaft protruding from the back of the first or second components respectively, or for the manufacture of a hub projection of an at least two-part compressor wheel with a shaft protruding from the back from the first and second components respectively,
• arranging at least one permanent magnet in a ring-shaped area around a section of the shaft that extends behind the compressor wheel, so that the at least one permanent magnet is fixed non-rotatably to the section of the shaft between a casing and the shaft.