Shot peening forming method for prolonging fatigue life of ribbed integral panel

A technology of integral wallboard and shot blasting, which is applied in aircraft parts, transportation and packaging, etc., can solve the problems affecting the fatigue performance of sprayed parts, achieve the effect of continuous shot blasting processing and forming, protect surface quality, and expand applications

Active Publication Date: 2022-02-08
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the increase in the size of the projectile will cause a large change in the surface quality of the sprayed metal, and the striker of the ultrasonic peening will also hit the edge of the part, thus affecting the fatigue performance of the sprayed part

Method used

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  • Shot peening forming method for prolonging fatigue life of ribbed integral panel
  • Shot peening forming method for prolonging fatigue life of ribbed integral panel
  • Shot peening forming method for prolonging fatigue life of ribbed integral panel

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Embodiment Construction

[0029] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The detailed description and accompanying drawings of the following embodiments are used to illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments, without departing from the spirit of the present invention Any modification, substitution and improvement of parts, components and connection methods are covered under.

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] The following will refer to the attached figure 1 - attached Figure 5 The present application will be described in detail in conjunction with the embodiments.

[0032] According to an embodiment of the pre...

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Abstract

The invention relates to a shot peening forming method for prolonging the fatigue life of a ribbed integral panel. Barrier strips at the two sides of a rib top are clamped, groove bodies are formed on the barrier strips, and shot peening forming is cairred out on shots in an area limited by the groove bodies by using shot peening equipment with the shot diameter of 1-6mm; the barrier strips are detached, metal sliding blocks are clamped to the two sides of the rib top, and sliding block grooves are formed in the metal sliding blocks; ultrasonic shot blasting equipment with the diameter of a spray needle being 2-6 mm is used, and the spray needle is sprayed and shaped in an area limited by the sliding block groove; and in the machining process, the metal sliding blocks are moved in the length direction of the rib top till the shape of the area to be subjected to shot peening forming machining on the rib top is corrected. According to the method, the surface quality of the rib top is effectively protected, reasonable shot peening strengthening parameters are combined, the fatigue life of the rib can be greatly prolonged, and application of the shot peening forming technology to the complex ribbed integral wall plate is expanded.

Description

technical field [0001] The invention relates to the technical field of shot peening, in particular to a shot peening method for improving the fatigue life of an integral wall plate with ribs. Background technique [0002] As an important part of a large aircraft, the large integral wall panel is not only an important part of the aerodynamic shape of the large aircraft, but also the main load-bearing component of the wings and fuselage. The overall wall panel of a large aircraft not only has a complex shape curvature, but also has a complex internal structure, such as integral reinforcement bosses, mouth frames, ribs and ribs, etc., which replace the traditional riveted combined wall panels to reduce the number of parts and lighten the The purpose of weight and reduce production cost. [0003] Due to the large plane size of the overall wall panel of a large aircraft and the complex internal and external structures, the methods of roll bending, gate bending and stretching use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D31/06B21D53/92
CPCB21D31/06B21D53/92
Inventor 曾元松王明涛白雪飘陈福龙杜立华
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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