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Blade position fixing method used in integral blade disc repairing process

A technology of integral blisk and fixing method, which is applied in the direction of grinding workpiece support, etc., can solve the problems of unreliable clamping position and deformation of the blade, and achieve the effect of avoiding processing damage and avoiding surface damage

Active Publication Date: 2019-02-15
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a method for fixing the position of the blade during the repair process of the overall blade disc, which solves the problem that the blade clamping position is unreliable and easily causes deformation during the linear friction welding repair process of the blade

Method used

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  • Blade position fixing method used in integral blade disc repairing process
  • Blade position fixing method used in integral blade disc repairing process
  • Blade position fixing method used in integral blade disc repairing process

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Embodiment Construction

[0036] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The detailed description and accompanying drawings of the following embodiments are used to illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments, without departing from the spirit of the present invention Any modification, substitution and improvement of parts, components and connection methods are covered under.

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0038] figure 1 It is a schematic diagram of fixing the position of the blade root in the prior...

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Abstract

The invention relates to a blade position fixing method used in the integral blade disc repairing process in the technical field of aviation manufacturing. The method comprises the steps that the periphery of a residual blade root of a to-be-repaired blade is covered with a metal film, and the metal film is closely attached to the profile of the residual blade root; metal powder is sprayed to theperiphery of the metal film, a clamping block is formed after the preset thickness is reached through spraying, and accordingly rigidity of the blade root is enhanced; heat treatment is conducted on the clamping block formed after spraying, and accordingly the mutual combination mechanical performance between particles of the metal powder in the clamping block is improved; and the clamping block is assembled to the periphery of the residual blade root, and a clamping clamp is arranged on the outer side of the clamping block for fixing the blade position. The problem that in the linear frictionwelding repairing process, blade clamping position fixing is not reliable, and deformation is likely to be caused is solved, and it is guaranteed that the profile quality of the repaired blade is notinfluenced.

Description

technical field [0001] The invention relates to the technical field of aviation manufacturing, in particular to a method for fixing the position of a blade during the repair process of an integral blisk. Background technique [0002] In the process of friction welding and diffusion welding, since a certain welding pressure needs to be applied to the parts to be welded, in order to avoid deformation of the welded parts during the welding process, the welded parts are required to have better structural rigidity. This requirement limits the application of friction welding or diffusion welding in the connection of thin-walled weakly rigid members. With these two methods, it is necessary to adopt an appropriate position fixing method for the component to avoid deformation of the workpiece. [0003] After the blades of the overall blisk of the engine are damaged, the position of the blades needs to be fixed before repairing by linear friction welding technology. Such as figure ...

Claims

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Application Information

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IPC IPC(8): B24B41/06
CPCB24B41/06
Inventor 金俊龙郭德伦张田仓陶军李菊
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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