ROTARY ASSEMBLY OF TURBINE, AND ROTOR FOR ROTARY MACHINE Russian patent published in 2013 - IPC F01D5/02 

FIELD: machine building.

SUBSTANCE: rotary assembly of a turbine includes the first and the second parts of a rotary element, which are made separately. The first part of rotary element is made separately from the first material using a plastic deformation method; at that, the first material is treated using the first technological process. The second part of rotary element is made separately too from the second material that is similar to the first material using plastic deformation method; at that, the second material is treated using the second technological process. The second part is welded to the first one in axial position. The first and the second materials contain titanium-based alloys. The other invention of the group refers to a rotor with a longitudinal axis, which contains two separately made parts as above.

EFFECT: inventions allows providing optimum creep rupture strength and optimum fatigue strength of the turbine rotor.

8 cl, 3 dwg