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Method for controlling appearance precision during creep aging forming of ribbed wall panel

A technology of creep aging forming and precision control, which is applied in the field of aircraft panel forming, and can solve problems such as deformation inconsistency and material performance differences

Inactive Publication Date: 2020-09-29
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is the uncoordinated deformation caused by the difference in material properties caused by the welding seam and the welding residual stress.

Method used

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  • Method for controlling appearance precision during creep aging forming of ribbed wall panel
  • Method for controlling appearance precision during creep aging forming of ribbed wall panel
  • Method for controlling appearance precision during creep aging forming of ribbed wall panel

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for description purposes, and should not be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermedia...

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Abstract

The invention discloses a method for controlling the appearance precision during creep aging forming of a welded ribbed wall panel. The method comprises the following steps of performing creep aging forming on a base material test panel, and acquiring a first relationship rule and a second relationship rule; performing welding seam longitudinal and transverse deformation single-rib piece creep aging forming on a welding seam structure of a target part, and acquiring a third relationship rule, a fourth relationship rule, a fifth relationship rule and a sixth relationship rule; determining the target aging temperature and the target aging time according to the second relationship rule, the fourth relationship rule and the sixth relationship rule; dividing the target part into a plurality ofregions according to the deformation conditions of a welding seam; and determining the pre-bending deformation amount of each region according to the target aging temperature and the target aging time. The purpose of the method for controlling the appearance precision during creep aging forming of the welded ribbed wall panel is to solve the problems that material properties vary due to the welding seam, and deformation is not coordinated due to welding residual stress.

Description

technical field [0001] The invention belongs to the technical field of aircraft wall plate forming, and in particular relates to a shape precision control method in the creep aging forming process of a ribbed wall plate. Background technique [0002] The wall plate component is one of the important parts types on the aerospace vehicle. It is not only an important part of the aerodynamic shape, but also the main load-bearing component of the aircraft wing and fuselage. At present, there are two commonly used structural forms of panel members, namely, the combined panel with riveted skin and long trusses and the integral panel with machined ribs. With the development of welding technology, the integral panel welded by skin and stringer provides a new slab manufacturing solution for the lightweight design and economical manufacture of the panel structure. [0003] However, due to the existence of vertical ribs in welded ribbed panels, the final forming of the panel components ...

Claims

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Application Information

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IPC IPC(8): C22F1/00B21D5/00
CPCB21D5/00B21D5/004C22F1/00
Inventor 白雪飘曾元松王明涛邱宇田硕
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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