Aviation blade oval leading and trailing edge process model generation method

Abstract

The invention discloses an aviation blade oval leading and trailing edge process model generation method which is used for solving the technical problem that a process model is difficult to be built during processing of oval leading and trailing edge blades in the prior art. The technical scheme includes: firstly establishing an affine coordinate system, and then utilizing affine relationship between a circle and an oval to build an oval leading and trailing edge blade process model. A user can quickly obtain an accurate oval leading and trailing edge blade process model only by setting a process error according to actual needs in engineering application so as to guide high-quality processing of aviation blades.

Description

technical field [0001] The invention relates to a method for generating a process model of the leading and trailing edges of an aviation blade, in particular to a method for generating a process model of an elliptical leading and trailing edge of an aviation blade. Background technique [0002] The interior of an aero-engine is basically composed of a series of blades, such as turbine blades, compressor blades, fan blades, etc.; as the core part of the engine, the models of aero-blades are mostly free-form surfaces, and the molding process is relatively complicated; at the same time, the shape of the blade surface Design and manufacturing levels largely determine engine performance. [0003] As a typical thin-walled structural part, thin-walled blades are prone to large deformation during processing; in addition, due to the problems of the process system itself composed of workpieces, tools, fixtures and machine tools, it is easy to produce overcut or under-processed blades ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiency that it is difficult to establish a process model for processing elliptical leading and trailing edge blades

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