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Sheet metal part vibratory stress relief method and device

A sheet metal part, vibration aging technology, 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. Effect

Active Publication Date: 2013-04-10
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

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  • Sheet metal part vibratory stress relief method and device

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Embodiment Construction

[0015] Referring to the drawings, in the embodiment, the sheet metal part 1 is a processed and formed aircraft leading edge skin, with a thickness of 1.2 mm and a length of 2000 mm, and the material is aluminum alloy 2024, which is stretched and formed by a skin stretching machine. In order to eliminate and homogenize the inherent 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 base 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 fixing member 8 and the vibration aging table 5, in order to facilitate the use of the bandage 2. The sheet metal part 1 is bundled on the mold tire...

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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 present application relates to the technical field of manufacturing aircraft sheet metal parts, in particular to a vibration aging treatment method and a vibration aging device for eliminating and homogenizing the residual stress generated during processing of aircraft sheet metal parts. Background technique [0002] During the process of casting, forging, welding, cutting and use of metal workpieces, residual stress is generated inside the workpiece due to heat, cold and mechanical action. 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 and physical properties of the workpiece, and lead to deformation and failure of the workpiece during manufacturing and service. On the material side, residual stress accelerates the corrosion rate of metals in corrosive environments. [0003] In order to eliminate residua...

Claims

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Application Information

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Patent Type & Authority Patents(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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