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Method for preparing multilayered lattice metal and foamed aluminium composite material

A composite material and aluminum foam technology, applied in the field of multi-layer lattice metal-aluminum foam composite material and its preparation, can solve the problems of poor energy dissipation performance, low structural rigidity and strength, and limit the application of foam core sandwich structure, etc., to achieve The effect of excellent overall performance and low manufacturing cost

Inactive Publication Date: 2012-03-28
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the usual porous metal sandwich panels are mostly single structures such as foamed aluminum or corrugated, which only have a single function, or a single function is strong while other functions are weakened. For example, the main advantage of closed-cell rigid aluminum foam as the core material is that it has It has the characteristics of high impact energy absorption rate, vibration isolation and sound insulation, but at the same time, it has the disadvantages of lower structural stiffness and strength than lattice structure core materials, lower transverse shear strength and bearing capacity, which seriously limits the foam core sandwich structure. Application on main structure
Lattice metal sandwich panels have high transverse shear strength and bearing capacity, but poor energy dissipation performance

Method used

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  • Method for preparing multilayered lattice metal and foamed aluminium composite material
  • Method for preparing multilayered lattice metal and foamed aluminium composite material
  • Method for preparing multilayered lattice metal and foamed aluminium composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: First, the corrugated core 3 is formed by molding and folding the flattened steel plate, then the corrugated core 3 and the panel 2 are cleaned to remove oil and rust, and the corrugated core is welded layer by layer by brazing or laser welding. Body 3 and panel 2 are welded to form 2 to 4 layers of corrugated structure lattice metal sandwich panels, wherein the corrugated structure core body of the corrugated structure lattice metal sandwich panel adopts the structural form of corrugated triangle vertices arranged in parallel (see figure 1 ); Then, according to the space size of the hole 4 in the corrugated structure core body 3, a cutting machine is used to cut the block aluminum foam into a triangular prism or a trapezoidal prism 5 adapted to the space size of the hole 4 in the corrugated structure core body 3; A layer of castor glue is evenly coated on the contact surface between the prism body and the core body of the corrugated structure, and then the...

Embodiment 2

[0028] Embodiment 2: First, the corrugated core 3 is formed by molding and folding the flattened steel plate, and then the corrugated core 3 and the panel 2 are cleaned to remove oil and rust, and the corrugated core is welded layer by layer by brazing or laser welding. Body 3 and panel 2 are welded to form 2 to 4 layers of corrugated structure lattice metal sandwich panels, wherein the corrugated structure core body of the corrugated structure lattice metal sandwich panel adopts a structural form in which the vertices of triangles are arranged in parallel and staggered (see figure 2 ), then, according to the spatial size of the hole 4 in the corrugated structure core body 3, a cutting machine is used to cut the block aluminum foam into a triangular prism or a trapezoidal prism 5 adapted to the spatial size of the hole 4 in the corrugated structure core body 3; The contact surface between the prism and the corrugated structure core is evenly coated with a layer of castor glue,...

Embodiment 3

[0029] Embodiment 3: First, the corrugated core 3 is formed by molding and folding the flattened steel plate, then the corrugated core 3 and the panel 2 are cleaned to remove oil and rust, and the corrugated core is welded layer by layer by brazing or laser welding. The body 3 is welded with the panel 2 to form a 2-4-layer corrugated structure lattice metal sandwich panel, wherein the corrugated structure core body of the corrugated structure lattice metal sandwich panel adopts an orthogonal structure (see image 3 ); Then, according to the space size of the hole 4 in the corrugated structure core body 3, a cutting machine is used to cut the block aluminum foam into a triangular prism or a trapezoidal prism 5 adapted to the space size of the hole 4 in the corrugated structure core body 3; The contact surface between the prism body and the core body is uniformly coated with a layer of castor glue, and then the prism body is inserted into any layer of 2 to 4 layers of corrugated ...

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Abstract

A method for preparing multilayered lattice metal and foamed aluminium composite material comprises the steps of welding a lattice metal core body (comprising corrugated structures and pyramid structures) and a steel plates one layer after another to get the multilayered lattice metal interlayered plate, and getting the multilayered lattice metal and foamed aluminium composite material after compounding with cut foamed aluminium in a gluing manner. The invention realizes the preparation of the multilayered lattice metal material and the compounding of the multilayered lattice metal and the foamed aluminium, and can get the multilayered lattice metal and foamed aluminium composite material interlayered plate. The multilayered lattice metal and foamed aluminium composite material interlayered plate has a broad application prospect in security safeguard, military, and other fields, can effectively reduce construction weight, improves impact deformability, has excellent buffering energy-absorber effect and low intensity when being used in personnel and equipment security safeguard particularly, has obvious edges compared with solid material on specific strength and specific stiffness, and has a lower manufacturing cost.

Description

technical field [0001] The invention relates to a metal-foam aluminum composite material and a preparation method thereof, in particular to a multilayer lattice metal-foam aluminum composite material and a preparation method thereof. Background technique [0002] Ultralight porous metal materials are a class of novel multifunctional materials that have emerged with the rapid development of material preparation and machining technology in recent years, and have the characteristics of structural and functional integration. Its core has high porosity, and its microstructure can be divided into disordered and ordered according to the degree of regularity. The former includes closed-cell aluminum foam materials, while the latter includes two-dimensional lattice materials (such as corrugated structures) and three-dimensional trusses. Structure (such as pyramid structure, tetrahedron structure). [0003] At present, the usual porous metal sandwich panels are mostly single structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/20B32B3/12B32B1/06
Inventor 闫雷雷张钱城卢天健金峰于勃
Owner XI AN JIAOTONG UNIV
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