TURBINE ROTOR FOR A TURBOCHARGER, TURBOCHARGER AND METHOD FOR PRODUCING A TURBINE ROTOR

摘要

The present invention relates to a turbine rotor for a turbocharger, in particular for a motor vehicle, having a turbine wheel which is formed in one piece and which has a turbine blade arrangement and a solid turbine wheel shoulder with a first end surface without cavities or depressions, and having a rotor shaft which is formed in one piece and which has a second end surface (7) with a depression (8) arranged coaxially with respect to the rotational axis (9), wherein the first end surface of the turbine wheel shoulder is connected to a second end surface of the rotor shaft in a cohesive fashion by means of a friction weld. The present invention also relates to a turbocharger and to a method for producing a turbine rotor according to the invention.