Shot peening strengthening deformation regulation method for large-curvature double-convex exterior ribbed integral panel

An integral wallboard and shot-peening strengthening technology, which is applied in the direction of used abrasive processing devices, abrasive materials, metal processing equipment, etc., can solve problems such as deformation, achieve the effect of eliminating local out-of-tolerance items and avoiding the risk of scrapping

Pending Publication Date: 2020-11-13
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The embodiment of the present invention provides a large-curvature double-convex shape ribbed integral wall plate shot peening strengthening deformation control method, by effectively controlling the shot peening deformation within the range allowed by the technical requirements, avoiding ultrasonic spraying after wall plate strengthening Shot correction, which solves the technical problem that the large-curvature double-convex shape with ribs is easy to produce large deformation after the whole surface is shot-peened.

Method used

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  • Shot peening strengthening deformation regulation method for large-curvature double-convex exterior ribbed integral panel
  • Shot peening strengthening deformation regulation method for large-curvature double-convex exterior ribbed integral panel
  • Shot peening strengthening deformation regulation method for large-curvature double-convex exterior ribbed integral panel

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Embodiment

[0065] Taking a certain type of large-curvature double-convex complex ribbed integral wall panel shot peening as an example, the slab shape structure of the large-curvature double-convex complex ribbed integral wall plate 1 is as follows: figure 2 As shown, the material is 2024-T351 aluminum alloy, the yield limit of the material is σys=370Mpa, the length is 8500mm, and the width is 1400mm. The number of ribs 101 distributed along the width of the panel is 8, and the profile of the ribs 101 is as follows: image 3 As shown, the large-curvature double-convex shape area in the middle of the wall plate has a length of about 2500mm and a width of 1400mm.

[0066] Shot peening implementation steps:

[0067] (1) Determination of panel forming parameters

[0068] Clear the shot peening area and process parameters of the wallboard, and record them, as shown in Table 1.

[0069] Table 1 Wall panel shot peening parameters

[0070] Projectile grade barometric pressure f...

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Abstract

The invention relates to a shot peening strengthening deformation regulation method for a large-curvature double-convex exterior ribbed integral panel. The method comprises the following steps of determining shot peening forming parameters of the large-curvature double-convex exterior ribbed integral panel; determining the shape accuracy and the surface coverage rate of the large-curvature double-convex exterior ribbed integral panel; dividing the large-curvature double-convex exterior ribbed integral panel into multiple areas according to the shot peening forming parameters, the shape accuracy and the surface coverage rate; determining shot peening strengthening parameters of each area; and shot peening strengthening each area according to a set order according to the shot peening strengthening parameters. The shot peening strengthening deformation regulation method for the large-curvature double-convex exterior ribbed integral panel provided by the invention aims to solve the problemthat the large-curvature double-convex exterior ribbed integral panel is very easy to generate relatively large deformation after being subjected to full-surface shot peening strengthening.

Description

technical field [0001] The invention relates to the technical field of shot peening, in particular to a control method for shot peening strengthening deformation of a large-curvature double-convex shape ribbed integral wall plate. Background technique [0002] As early as the 1920s and 1930s, after the discovery that shot peening had the effect of improving the fatigue performance of parts, the shot peening process developed from the spray (shot) peening process stood out and was immediately used to improve auto parts. (especially the spring) fatigue strength, and the first to obtain a wide range of applications in the automobile manufacturing industry. In view of the low cost and high production efficiency of the process, especially the outstanding strengthening effect, it was quickly applied to the aviation manufacturing industry, and has achieved considerable development and continuous improvement in the aviation and military manufacturing industries. However, the shot pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/10B24C7/00B24C9/00
CPCB24C1/10B24C7/0046B24C9/00
Inventor 盖鹏涛曾元松尚建勤陈福龙田硕
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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