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Method for forming horn mouth component of gas compressor cover

A molding method and bell mouth technology, applied in the field of mechanical processing, can solve the problem of high equipment cost, achieve the effect of saving manufacturing cost and ensuring product quality

Active Publication Date: 2018-01-05
HUNAN SOUTH GENERAL AVIATION ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the bell-mouth part 1, expansion equipment is usually used for one-time molding, but expansion equipment usually has high equipment costs and is suitable for mass production

Method used

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  • Method for forming horn mouth component of gas compressor cover
  • Method for forming horn mouth component of gas compressor cover
  • Method for forming horn mouth component of gas compressor cover

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Experimental program
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Embodiment Construction

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Wherein, the same parts adopt the same reference numerals.

[0025] figure 1 It is a schematic diagram of a half-section structure of a compressor bell mouth part of an aero-engine; figure 2 It is a half-sectional schematic diagram of the blank in step (1) of a method for forming a compressor bell mouth part according to a specific embodiment of the present invention; image 3 for figure 2 The half-section schematic diagram of the blank after completing step (2); Figure 4 for image 3 The half-section schematic diagram of the blank after completing step (3); Figure 5 It is a schematic diagram of the three-dimensional decomposition structure of the first stamping die of step (3); Image 6 for Figure 5 The schematic diagr...

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PUM

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Abstract

A method for forming a horn mouth component of a gas compressor cover includes the following steps that 1, deep drawing is performed on a plate blank with equal wall thickness to that of the horn mouth component for the first time; 2, an inner hole is turned in the blank formed in the step 1; 3, a first punching die is provided to form a BD section molded surface; 4, the formed blank formed in thestep 3 is machined to finish forming of the BD section molded surface; 5, a second die is provided to complete forming of an AB molded surface. In the method for forming the horn mouth component of the gas compressor cover, key points are arranged to perform section forming the first punching die and the second die are adopted, in this way, forming of complex molded surfaces can be machined through a common punching machine and a common turning lathe, and while product quality is guaranteed, manufacturing cost is greatly saved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing and forming method for a thin-walled compressor cover bell mouth part of an aero-engine. Background technique [0002] figure 1 It is a schematic diagram of the half-section structure of the bell mouth part of the compressor cover of an aero-engine, see figure 1 As shown, the bell mouth part 1 is an annular thin-walled part, its wall thickness t is 1.02mm, and its ABCD is a spline curve, which requires continuous and smooth transition, and requires high profile. In the figure, point A is the lowest point of the outer arc of the profile of the bell mouth part 1, point B is the highest point of the profile, point D is the lowest point of the inner cavity of the profile, and point C is the inner cavity of the profile The feature points of , which are used to help define the shape of segment BC during the manufacturing and inspection process, for example, can be ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D53/84B21D37/10
Inventor 曾旭辉王思晔朱高东刘宏斐
Owner HUNAN SOUTH GENERAL AVIATION ENGINE CO LTD