Anti-vibration type dual-alloy turbine blisk and manufacturing method thereof

An integral blisk, double-alloy technology, applied in engine components, machines/engines, blade support elements, etc., can solve problems such as low reliability, poor blisk casting process, insufficient vibration resistance, and insufficient torsional resistance, and achieve Good structure and properties, easy control of dimensional accuracy, good effect of high temperature durable creep performance

Inactive Publication Date: 2014-12-10
CHINA GAS TURBINE ESTAB
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor casting process, insufficient anti-vibration and torsion resistance, and low reliability of single-alloy cast turbine blisks; at the same time, it can take into account the different performance requirements of blades and discs

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  • Anti-vibration type dual-alloy turbine blisk and manufacturing method thereof
  • Anti-vibration type dual-alloy turbine blisk and manufacturing method thereof
  • Anti-vibration type dual-alloy turbine blisk and manufacturing method thereof

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Embodiment Construction

[0023] The present invention will be described in further detail below by specific embodiment:

[0024] Please also see figure 1 , figure 2 , image 3 with Figure 4 ,in, figure 1 It is a schematic diagram of the anti-vibration double alloy turbine blisk overall of the present invention. The anti-vibration double alloy turbine integral blisk of the present invention is formed by precision casting blade ring assembly 1 and powder alloy disc body 2 through hot isostatic pressure diffusion welding, which avoids the fact that the single alloy integral blisk cannot take into account the actual needs of the blade and the disc performance. The flexible selection of materials for the turbine disc body and blades and the matching of the best performance are realized. There is a slit between each blade channel, and the depth of the slit must exceed the welding position to ensure the coordination of the deformation of the two alloys. In addition, the number of slits is consistent ...

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Abstract

The invention belongs to turbine blisk technologies, and relates to an anti-vibration type dual-alloy turbine blisk and a manufacturing method thereof. The anti-vibration type dual-alloy turbine blisk is formed by welding a precision cast blade ring component and a sintered alloy blisk body in a diffusion mode through hot isostatic pressure, cut joints are formed between blade channels of the blisk, damping holes communicated with the cut joints are formed in the lower portion of the rim of the blisk, and friction dampers are arranged in the damping holes. The anti-vibration type dual-alloy turbine blisk is formed by welding the precision cast blade ring component and the sintered alloy blisk body in the diffusion mode through hot isostatic pressure, flexible selection and best usability matching of turbine disks and blades are achieved, meanwhile, the friction dampers are arranged on the blisk, the damping and vibration reducing effect is improved, the purposes of improving anti-fatigue ability of the blades and reducing vibration stress of the blades are achieved, and the anti-vibration type dual-alloy turbine blisk has great practical use value.

Description

technical field [0001] The invention belongs to the technology of turbine blisks, and relates to an anti-vibration double alloy turbine integral blisk. Background technique [0002] The turbine rotor blisk assembly is the core component of an aero-engine, and it is also a failure-prone part. It is composed of a turbine rotor blade and a turbine disk assembly. During its design and use, the failure rate is relatively high. At present, with the continuous increase of the temperature and speed in front of the turbine, it is more and more difficult to design the disc tenon connection strength of the disc-separated turbine rotor, and the disc assembly has complex structure, low reliability and heavy weight. However, the conventional single-alloy turbine blisk has the following disadvantages: 1) it cannot take into account the performance of the blade and the disk body; 2) due to the large difference in thickness between the blade and the disk, the casting process is poor, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/02F01D5/34F01D5/10F01D5/26
CPCB23P15/02F01D5/10F01D5/34
Inventor 贺进李晓明李世峰孙飞龑李超谢强
Owner CHINA GAS TURBINE ESTAB
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