Method for building blade rolling process model

A process model, a technology for rolling blades, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of low design accuracy of blade rolling molds, achieve stable changes, improve design accuracy, and prevent organization. Effect

Inactive Publication Date: 2015-02-04
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to overcome the deficiency of low design accuracy of blade rolling die in the existing method, the present invention provides a method for establishing a rolling blade process model

Method used

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  • Method for building blade rolling process model
  • Method for building blade rolling process model
  • Method for building blade rolling process model

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Embodiment Construction

[0030] refer to Figure 1-5 . The present invention sets up the method concrete steps of rolling blade process model as follows:

[0031] The method of the present invention is described by taking the rolling process model of compressor blades established in UG NX7.0 software as an example.

[0032] Step 1: Start the 3D modeling software UG NX7.0, enter the modeling module and import the compressor blade model 3.

[0033] Step 2: Extend the section line of the blade tip of the compressor blade model 3 along the opposite direction of the blade body to the half of the maximum diameter of the inscribed circle of the section line, that is, Cmax / 2, to form the process transition 2 connecting the blade tip; The root section line is extended along the opposite direction of the blade body to the half of the maximum diameter of the inscribed circle of the section line, that is, Cmax / 2, forming a process transition 4 connecting the blade root.

[0034] Step 3: Extract the cross-secti...

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Abstract

The invention discloses a method for building a blade rolling process model, which aims at solving the technical problem of low design accuracy of the blade rolling die in the prior art. The method adopts the technical scheme that on the basis of an UG three-dimensional modeling platform and a secondary development platform, designing the process compensations of a blade intake side, a blade exhaust side, a blade tip and a blade root, establishing the reference of the process model, and finally obtaining the blade rolling process model. The method has the advantages that the profile process addition at the intake side and the exhaust side shall be in smooth connection and in a bottleneck shape, so the fluctuating wave and cracking of a blade is avoided, the uniform tissues in the extrusion process are guaranteed, and the misrun is avoided; the process addition of the blade tip and the blade root shall be in smooth torsion and uniform transition, so the change of engaging and loosening in the rolling process is stable; the reference of the process model can establish the positioning reference for rolling forming and blade measurement, and the design accuracy of the blade rolling die is improved.

Description

technical field [0001] The invention relates to a modeling method, in particular to a method for establishing a rolling blade process model. Background technique [0002] Blade rolling precise forming technology is an advanced blade processing method. With its advantages of high production efficiency, high dimensional accuracy, and good structure performance, it has become an important processing method for small blades of aero-engines. The cavity of the rolling die is the most important factor affecting the accuracy of the rolling blade. The establishment of the cavity of the rolling die is based on the rolling process model, so the rationality of the modeling method of the rolling blade process is very important. [0003] The document "Authorized Publication No. CN102110180B Chinese Invention Patent" discloses a design method for the inlet and outlet edge profiles of a blade rolling die. The method is based on three-dimensional computer-aided design software to extend and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 汪文虎靳淇超赵德中解晓娜张艳熊一峰宋国栋林坤阳
Owner NORTHWESTERN POLYTECHNICAL UNIV
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