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A method for preparing aluminum/magnesium/aluminum composite panels at a three-dimensional layer interface

A technology of aluminum composite panels and composite slabs, applied in the direction of manufacturing tools, metal rolling, welding equipment, etc., can solve the problems of difficult deformation, difficult to achieve metal sheet composite, limited application of corrugated rolling, etc., to achieve smooth surface, reduce The effect of combining interface defects and increasing the interface bonding area

Active Publication Date: 2021-11-30
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, generally, the metal near the corrugated roller (double board) is a difficult-to-deform metal, and the metal (substrate) on the other side is an easy-to-deform metal. This method is more suitable for the compounding of double-layer plates, and it is difficult to realize the compounding of metal plates with three or more layers.
Corrugation therefore has limited applications

Method used

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  • A method for preparing aluminum/magnesium/aluminum composite panels at a three-dimensional layer interface
  • A method for preparing aluminum/magnesium/aluminum composite panels at a three-dimensional layer interface

Examples

Experimental program
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Effect test

specific Embodiment 1

[0036] Specific example one: use this method to prepare 2024 / AZ31 / 2024 composite board:

[0037] one, such as figure 1 As shown in (a), the surface of AZ31 and 2024 is machined with V-shaped layer interface protrusions that cooperate with each other. The size of the hot pressing die used is 60×100mm, so the machining size of AZ31 and 2024 alloys is 60×60;

[0038] 2. Clean the surface to be bonded of AZ31 and 2024, lightly brush the bonded surface with a brush, then use ultrasonic cleaning in alcohol solution and dry it;

[0039] 3. According to the order of 2024 / AZ31 / 2024, they are intermeshed and stacked to form composite slabs;

[0040]4. Put the composite slab into the hot-pressing mold, and the side perpendicular to the direction of the trapezoidal section is stuck in the mold. Before hot-pressing, apply boron nitride suspension on the surface of the mold to facilitate demoulding. When hot-pressing, the composite slab Keep warm in the mold at 400°C for 15min, then hot p...

specific Embodiment 2

[0045] Specific embodiment two: the difference between this embodiment and specific embodiment one is that in step one such as figure 1 As shown in (b) and (c), the V-shaped layer interface and corrugated layer interface protrusions that cooperate with each other are machined on the surface of AZ31 and 2024.

specific Embodiment 3

[0046] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the magnesium described in step one is pure magnesium or any other plastically deformable magnesium alloy, aluminum is pure aluminum or any other plastically deformable aluminum alloy, and other It is the same as in the first embodiment.

[0047] like figure 2 As shown, it is a schematic diagram of the composite slab after multiple unidirectional ultrasonic waves at the interface of the trapezoidal layer with variable temperature, variable load and heat pressing + rolling; where (a) is the physical cross-sectional view of the composite slab, and (b) is the white box in figure (a) Surface scan of elements in the region shown.

[0048] It can be seen from the figure that the use of multiple unidirectional ultrasonic variable temperature and load hot pressing + rolling two-step thermal deformation method can enhance the overall strength and plasticity of the laminate and...

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Abstract

The invention discloses a method for preparing an aluminum / magnesium / aluminum composite board with a three-dimensional layer interface. Firstly, a three-dimensional interface that cooperates with each other is machined on a magnesium and aluminum alloy board; the surface to be combined with the magnesium and aluminum alloy is cleaned; Magnesium / aluminum are intermeshed and stacked in sequence to form a composite slab; multiple times of unidirectional ultrasonic heat-pressing with variable temperature and load are performed to fill the sheet; hot rolling is used to obtain a tightly bonded composite slab. The present invention adopts the two-step thermal deformation method combining hot pressing and rolling to obtain a laminated plate with uniform thickness, smooth surface and relatively high surface quality. This method has simple process, low energy consumption, and high quality composite plate, which is suitable for popularization and use .

Description

technical field [0001] The invention belongs to the technical field of light alloy processing and forming, and in particular relates to a method for preparing an aluminum / magnesium / aluminum composite plate at a three-dimensional layer interface. Background technique [0002] The metal layered composite sheet is prepared from a variety of metals with significant advantages through certain composite technologies (such as explosive welding, physical vapor deposition, rolling composite method, etc.), and the mutual diffusion between atoms is realized on the joint surface. Finally, metallurgical combination is achieved, and a new type of composite material with the advantages of each single metal is obtained, and some new physical, chemical, electromagnetic, mechanical and other new properties other than the properties of a single metal are produced due to the interface metallurgical combination. Since the United States first proposed the metal lamination composite process in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K20/10B23K20/00B23K20/233B21B1/38
CPCB21B1/38B21B2001/386B23K20/008B23K20/10B23K20/2336B23P15/00
Inventor 邓坤坤霍学杰吴玉程聂凯波王翠菊梁伟
Owner TAIYUAN UNIV OF TECH
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