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Sheet metal part vibratory stress relief method and device

A technology of sheet metal parts and vibration aging, which is applied in the manufacturing field of aircraft sheet metal parts, can solve the problems of stress corrosion resistance of sheet metal parts, large deformation of aircraft sheet metal parts, etc., and achieve easy operation, simple structure, and overcome the difficulty of fixing the shape Effect

Active Publication Date: 2011-11-23
XIAN AIRCRAFT IND GROUP
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Problems solved by technology

[0007] The purpose of the present invention is to provide a vibration aging method and a vibration aging device for eliminating the residual stress of aircraft sheet metal parts, so as to solve the problem of excessive deformation of aircraft sheet metal parts in the manufacturing process and the assembly process with stress in the assembly process, and improve the use of aircraft. Stress Corrosion Resistance of Sheet Metal Parts in Process

Method used

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  • Sheet metal part vibratory stress relief method and device
  • Sheet metal part vibratory stress relief method and device
  • Sheet metal part vibratory stress relief method and device

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Embodiment Construction

[0015] Referring to the accompanying drawings, the sheet metal part 1 in the embodiment is a processed aircraft front edge skin with a thickness of 1.2mm and a length of 2000mm, made of aluminum alloy 2024, and stretched and formed by a skin stretching machine. In order to eliminate and homogenize the internal stress after processing, the present application proposes a vibration aging method and a vibration aging device. exist figure 2 Among them, the mold tire 7 is used to fix and maintain the shape of the sheet metal part 1, and the shape of the mold tire 7 must match the shape of the sheet metal part 1. The pedestal part of the mold tire 7 in the implementation is a plane, the mold tire 7 is placed on the upper surface of the vibration aging table 5, and the two ends of the mold tire base are fixed with the vibration aging table 5 with the fixture 8. Sheet metal parts 1 are bound on the mold tire 7, between the pedestal of mold tire 7 and the vibratory aging table 5, the ...

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Abstract

The invention provides a sheet metal part vibratory stress relief method and device. A machined sheet metal part and a model tire are together fixed on a vibratory stress relief platform, a vibration exciter is rigidly fixed with the vibratory stress relief platform, and a control system is used for starting the vibration exciter, so that the vibratory stress relief platform, and the model tire and the sheet metal part fixed with the vibratory stress relief platform can vibrate simultaneously, thereby eliminating and homogenizing the internal stress of the sheet metal part.

Description

technical field [0001] The application relates to the technical field of manufacturing aircraft sheet metal parts, in particular to a treatment method and a vibration aging device for eliminating and homogenizing the residual stress generated during the processing of aircraft sheet metal parts. Background technique [0002] During casting, forging, welding and cutting processing and use of metal workpieces, due to heat, cold and mechanical effects, residual stress is generated inside the workpiece. These residual stresses are a kind of preload, which will restrict the load capacity of the workpiece, make the workpiece in an unstable state, reduce the dimensional stability and mechanical physical properties of the workpiece, and cause deformation and failure of the workpiece during manufacturing and service. In terms of materials, residual stress will accelerate the corrosion rate of metals in corrosive environments. [0003] In order to eliminate residual stress in metal wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D10/00C22F3/00
Inventor 马永波徐梅张新娟
Owner XIAN AIRCRAFT IND GROUP
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