An anti-vibration milling method for ultra-thin blades of integral impeller

Abstract

The invention discloses an anti-vibration milling method for ultra-thin blades of an integral impeller, which includes rough milling and fine milling or rough milling, semi-finish milling and fine milling of the blades, adding supports on the blades during rough milling or semi-finish milling of the blades Ribs, the supporting ribs are removed during blade finish milling. The supporting ribs are located on both sides of the curved surface of the blade, and are integrated with the curved surface of the blade. The supporting ribs extend along the length of the blade, and are radially distributed from the small diameter end of the hub of the integral impeller to the large diameter end of the outer edge of the integral impeller. By adopting the milling method of the invention, the deformation of the blade is reduced, and the technical requirement of the profile degree of the curved surface of the blade is guaranteed. Improve and enhance the cutting rigidity of the blade of the part, reduce the cutting vibration, ensure and improve the surface quality of the blade, and avoid the cracking and bending of the front and rear edges of the blade.

Description

technical field [0001] The invention relates to an integral impeller system part of an ultra-thin complex curved blade in the fields of aviation, aerospace and the like, in particular to a milling method for an ultra-thin blade on an integral impeller. Background technique [0002] As the key core components of modern aviation and aerospace environmental control systems, high-tech equipment environmental control systems and aero-engine systems, the integral impeller with ultra-thin complex curved blades not only affects the working efficiency of the components, but also affects the operation of the components. Reliability, stability. [0003] In the manufacturing process of this kind of products for the first time and for many years, the conventional processing methods in the past can no longer guarantee the design requirements. The main problems are: large cutting vibration, rough surface of the blade, frequent cracking of the front and rear edges of the blade, and the curv...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the existing processing technology, the present invention aims to provide an anti-vibration milling method for the ultra-thin blade of the integral impeller, which is prone to large cutting vibration and rough surface of the blade in the cutting process of the existing ultra-thin blade of the integral impeller. , The front and rear edges of the blade often appear cracking, the shape accuracy of the blade surface is poor, and the processing pass rate is low. Provide solutions and solutions, and achieve the following goals:

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