Full-process processing method applicable to heat-treatment-enhanced aluminum alloy

A processing method and aluminum alloy technology, applied in metal processing equipment, manufacturing tools, laser welding equipment, etc., can solve the problems of difficult forming, difficult control of product quality, cost and process difficulty, etc., so as to retain work hardening and avoid assembly Difficulty in clamping and reducing the effect of tissue weakness

Pending Publication Date: 2019-05-10
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

The processing method is dedicated to solving the problems of difficulty in forming and difficulty in controlling the quality of parts caused by the mutual influence of heat treatment, welding and plastic forming processes in the production of large thin-walled aerospace components that can be strengthened

Method used

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  • Full-process processing method applicable to heat-treatment-enhanced aluminum alloy
  • Full-process processing method applicable to heat-treatment-enhanced aluminum alloy
  • Full-process processing method applicable to heat-treatment-enhanced aluminum alloy

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0029] see figure 1 , the present invention provides a full-process processing method suitable for heat-treatable aluminum alloys, the processing method mainly includes the following steps:

[0030] Step 1: After cleaning and grinding the weld seam of the aluminum alloy sheet, laser welding is performed on the annealed aluminum alloy sheet by laser; wherein, the wavelength of the laser is 1.07n...

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Abstract

The invention belongs to the technical field related to the preparation of aviation and spaceflight large thin-wall components, and discloses a full-process processing method applicable to a heat-treatment-enhanced aluminum alloy. The method comprises the following steps that (1) after a weld joint of an aluminum alloy plate material is cleaned and polished, laser welding and splicing are carriedout on the aluminum alloy plate material in an annealed state by using laser, wherein the wavelength of the laser is 1.07 nm, and the power of the laser is 3.5 kW; (2) solution treatment and dual-stage aging treatment are sequentially carried out on the welded aluminum alloy plate material subjected to welding treatment so as to obtain a semi-finished product of a thin-wall component, wherein thefirst stage of the dual-stage aging treatment is kept at 140 DEG C for 2 hours, and the secondary stage of the dual-stage aging treatment is kept at 180 DEG C for 6 hours; and (3) plastic deformationprocessing is carried out on the semi-finished product by means of electromagnetic forming so as to obtain the thin-wall component. The full-process processing method simplifies the technology, improves the precision, has good flexibility, and is easy to implement.

Description

technical field [0001] The invention belongs to the related technical field of aerospace large-scale thin-walled components, and more specifically relates to a whole-process processing method suitable for heat-treatable and strengthened aluminum alloys. Background technique [0002] At present, in the field of aerospace, with the increasing demand for carrying capacity, the requirements for large-scale and lightweight vehicles are also increasing. So far, for various aluminum alloys including rocket tanks The manufacture of large thin-walled components remains a major challenge. [0003] In view of the existing application technology, the article "Spinforming of Friction Stir WeldedAA2219 Circular Blanks for ARIANE 5 Main Stage Tank Bulkheads" introduces the manufacturing method of the dome structure of the fuel tank used in the Ariane 5 launch vehicle, and its process includes welding , preforming, forming, heat treatment and other steps, through the reasonable regulation ...

Claims

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Application Information

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IPC IPC(8): B23K26/20C22F1/04B23P15/00
Inventor 黄亮王泽宇李建军朱辉
Owner HUAZHONG UNIV OF SCI & TECH
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