Composite compressor wheel for exhaust gas turbocharger with titanium aluminide - wheels

摘要

A rotor for exhaust gas turbocharger (atl), comprising a turbine wheel (3) of a metal aluminide, a steel - or ni - base alloy hollow shaft (2), and a compressor wheel (1), wherein the compressor wheel (1) has a pin (5), the partially into the steel - or ni - base alloy hollow shaft (2) and with this, a positive connection (6) forms, as well as a method for the production of rotors for exhaust gas turbocharger (atl) with a turbine wheel (3), metal hollow shaft (2) and compressor wheel (1), comprising the steps of- material connection of the turbine wheel (3) and metal hollow shaft (2)- positive connection of the compressor wheel and metal hollow shaft (2), wherein the positive connection (6) substantially over a into the metal hollow shaft (2) projecting lugs (5) of the compressor wheel (1) and the inner side of the metal hollow shaft is produced.