Metal injection molded turbine rotor and metal injection...

Details Metal injection molded turbine rotor and metal injection... Metal injection molded turbine rotor and metal injection...

2007-07-10

2007-07-10

King, Roy V. (Department: 1742)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

C419S006000

Reexamination Certificate

active

10639314

ABSTRACT:
A rotor shaft assembly (101) of a type used in a turbocharger, manufactured by mounting a powder compact of a titanium aluminide rotor (203) to a powder compact of a steel shaft (207), with a metal powder admixed with a binder (211) interposed between the rotor and shaft, and debinding and sintering the mounted compact combination. Sintering produces a strong metallurgical bond between the shaft and rotor, providing a near-net rotor shaft assembly (101) and also an inexpensive and efficient method for the manufacture of an assembly capable of withstanding the high forces and temperatures within a turbocharger.

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