Anti-vibration milling method for ultrathin blade of integral impeller

Abstract

The invention discloses an anti-vibration milling method for an ultrathin blade of an integral impeller, which comprises the steps of rough milling and finish milling or rough milling, semi-finish milling and finish milling of a blade, wherein supporting ribs are additionally arranged on the blade when the blade is subjected to rough milling or semi-finish milling, and the supporting ribs are removed when the blade is subjected to finish milling; the supporting ribs are located on the two side faces of the curved surfaces of the blades, combined with the curved surfaces of the blades into a whole, extend in the length direction of the blades and are distributed in a radial mode from the small-diameter end of a hub of the integral impeller to the large-diameter end of the outer edge of the integral impeller. With the adoption of the milling method, blade deformation is reduced, and the technical requirement for the surface profile tolerance of the curved surface of the blade is met. And the cutting rigidity of the part blade is improved, the cutting vibration is reduced, the surface quality of the blade is ensured and improved, and the phenomena of cracking and bending of the front edge and the rear edge of the blade are avoided.

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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