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Lattice metal-foamed aluminium composite material and preparation method thereof

A composite material and aluminum foam technology, which is applied in the field of lattice metal-aluminum foam composite material and its preparation, can solve the problems of low structural rigidity and strength, poor energy dissipation performance, low transverse shear strength and bearing capacity, etc. Achieve the effect of low cost, excellent comprehensive performance and easy compounding

Inactive Publication Date: 2012-04-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 the application It has impact energy absorption, vibration isolation and sound insulation, etc., but its structural stiffness and strength are lower than those of lattice structure core materials, and its transverse shear strength and bearing capacity are lower, which seriously limits the use of foam core sandwich structures in the main structure. application on
Lattice metal sandwich panels have high transverse shear strength and bearing capacity, but poor energy dissipation performance

Method used

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  • Lattice metal-foamed aluminium composite material and preparation method thereof
  • Lattice metal-foamed aluminium composite material and preparation method thereof
  • Lattice metal-foamed aluminium composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: 1) First, the carbon steel punching diamond mesh is formed by molding and folding technology to form the pyramid structure core 1, then the formed pyramid structure core 1 and the panel 2 are cleaned to remove oil stains and rust, and brazing is used to Pyramid structure core 1 and face plate 2 are welded to form a pyramid structure lattice metal sandwich panel, see figure 2 ;

[0022] 2) Then, according to the space size of the hole 4 in the pyramid structure core 1, a cutting machine is used to cut the block foamed pure aluminum into a triangular prism or a trapezoidal prism 5 that is compatible with the space size of the hole 4 in the pyramid structure core 1;

[0023] 3) Finally, a layer of casting glue is evenly coated on the contact surface of the triangular prism or trapezoidal prism 5 and the pyramid structure core 1, and then the triangular prism or trapezoidal prism 5 is inserted into the hole 4 of the pyramid structure lattice metal sandwich pl...

Embodiment 2

[0024] Example 2: 1) First, the flattened expanded metal mesh was formed by molding and folding technology to form a pyramid structure core 1, and then the formed pyramid structure core 1 and panel 2 were cleaned to remove oil stains and rust, and laser welding was used. Weld the pyramid structure core 1 and the face plate 2 to form a pyramid structure lattice metal sandwich panel, see figure 2 ,;

[0025] 2) Then, according to the space size of the hole 4 in the pyramid structure core 1, a cutting machine is used to cut the block foam aluminum alloy into a triangular prism or a trapezoidal prism 5 that is compatible with the space size of the hole 4 in the pyramid structure core 1;

[0026] 3) Finally, a layer of Loctite is evenly coated on the contact surface of the triangular prism or the trapezoidal prism 5 and the pyramid structure core 1, and then the triangular prism or the trapezoidal prism 5 is inserted into the hole 4 of the pyramid structure lattice metal sandwich ...

Embodiment 3

[0027] Example 3: 1) First, the flattened carbon steel plate is molded and folded to form a corrugated structure core 3, and then the formed corrugated structure core 3 and panel 2 are cleaned to remove oil stains and rust, and brazing or laser is used. Welding the corrugated core 3 and the face plate 2 to form a lattice metal sandwich panel with corrugated structure, see figure 1 ;

[0028] 2) Then, according to the space size of the hole 4 in the corrugated structure core 3, a cutting machine is used to cut the block-shaped foamed pure aluminum into a triangular prism or a trapezoidal prism 5 that is compatible with the space size of the hole 4 in the corrugated structure core 3;

[0029] 3) Finally, a layer of casting glue is evenly coated on the contact surface of the triangular prism or trapezoidal prism 5 and the corrugated structure core 3, and then the triangular prism or trapezoidal prism 5 is inserted into the hole 4 of the corrugated structure lattice metal sandwich...

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Abstract

The invention discloses a preparation method of a lattice metal-foamed aluminium composite material, characterized by cementing a lattice metal material (including ripple structure and pyramid structure) and cut foamed aluminium to obtain a multifunctional composite porous material. The lattice metal-foamed aluminium composite sandwich panel disclosed herein has a wide application prospect in the fields of transportation, mechanical manufacturing, and military, can effectively reduce the structure weight, improves the performances of impact deformation and magnetic shield, especially brings the performances of high intensity, high rigidity and excellent damping capacity into play in the field of mechanical manufacturing, and has the advantage of low production cost.

Description

technical field [0001] The invention relates to a preparation method of a metal-foamed aluminum composite material, in particular to a lattice metal-foamed aluminum composite material and a preparation method thereof. Background technique [0002] Ultralight porous metal materials are a new class of multifunctional materials that have emerged with the rapid development of material preparation and machining technology in recent years. Its core has high porosity, and its microstructure can be divided into two categories: 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 (eg pyramid structure, tetrahedral structure). [0003] At present, the usual porous metal sandwich panels are mostly single structures such as aluminum foam or corrugation, which only have a single function, or...

Claims

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Application Information

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IPC IPC(8): B32B3/10B32B1/06B32B15/01B32B7/12
Inventor 张钱城卢天健闫雷雷韩宾金峰
Owner XI AN JIAOTONG UNIV
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