Compensation method for blisk blade profile reverse deformation

A technology of integral blisk and compensation method

Active Publication Date: 2017-01-04
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the overall blisk blade profile forming and surface treatment process, due to the complexity of the process system, it is impossible to rely entirely on the simulation processing software for accurate prediction

Method used

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  • Compensation method for blisk blade profile reverse deformation
  • Compensation method for blisk blade profile reverse deformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] Taking a certain overall blisk blade shape as an example, the characteristics of the overall blisk blade shape are: the material is titanium alloy, the length of the blade span is 75mm, and the thickness range of 1mm from the inlet and outlet sides of the blade is 0.35mm to 0.8mm, and from The direction from the blade root to the blade tip decreases sequentially, and the compensation method for the reverse deformation of the overall blisk blade shape in this embodiment is carried out according to the following steps:

[0040] (1) The analysis method of the effect of fine milling, polishing, vibrating finishing, and shot peening on the blade shape parameters of the overall blade disc:

[0041] 1) The process state is stable

[0042] The processing and measuring equipment used in each process stage of the blisk of each stage, the processing and measuring parameters, the processing and measuring methods are unified, and the processing and measuring states are stable;

[0...

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Abstract

The invention relates to machining of high-pressure compressor blisks, in particular to a compensation method for blisk blade profile reverse deformation. The compensation method comprises the following steps that influence of the finish-milling process, the polishing process, the vibration-polishing process and the shot blasting process on blisk blade profile parameters is analyzed, and the change law of the blade profile parameters is obtained; and then reverse deformation compensation is conducted on the blisk blade profile according to the change law of the blade profile parameters, wherein the reverse deformation compensation process comprises the following sub-steps that a finish-milling procedure machining model is corrected firstly, an blisk is machined through a symmetrical milling method according to the corrected digital model secondly, and finally, a polishing procedure, a vibration-polishing procedure and a shot blasting procedure are sequentially conducted. According to the compensation method different from conventional single-procedure deformation control, the four continuous working procedures are integrated by means of deformation coupling characteristics of the different working procedures in a technological system, deformation control in the four working procedures are compounded and overlaid to be converted into the single working procedure of computer numerical control finish-milling, and the final delivery quality of products is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the processing of the overall blisk of a certain high-pressure compressor, and is specifically aimed at the deformation law and reverse deformation amount processing of the parameters of the high-pressure compressor overall blisk blade shape in the fine milling process, polishing process, vibration finishing process, and shot peening process The compensation method is specifically a method for compensating the amount of reverse deformation of the overall blade disk. [0003] 【Background technique】 [0004] The CNC machining process of the overall blisk blade shape is an important link to ensure that the geometric accuracy of the overall blisk blade meets the design requirements, but the subsequent polishing process, vibration finishing process, and shot peening process have different degrees of influence on the overall blisk blade shape parameters , The process of profile forming and surface strengthening of the overall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 叶忠宇赵亮高晓斐郝晓萍高林军王京王惠雅同更强
Owner AECC AVIATION POWER CO LTD
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