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Honeycomb core material

A honeycomb core material, honeycomb technology, applied in resistance welding equipment, laser welding equipment, manufacturing tools, etc., can solve the problems of large fluctuation of crush curve, unstable structure design and manufacturing, etc., to achieve maximum specific strength and high stability , the effect of reducing fluctuations

Active Publication Date: 2021-10-08
MAANSHAN ANDER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a honeycomb core material to solve the fluctuation of crushing curve of metal honeycomb in the prior art, especially welded (non-cemented) metal honeycomb core material Large, unstable structural design and manufacturing technical issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The size of the crush test honeycomb core: 100mm (length) × 100mm (width) × 100mm (height), the material is 304 stainless steel, the thickness is 0.13mm × the cell D6.4mm, the side length A of the node of the honeycomb unit is 3.70mm, The distance d between adjacent solder joints is set to 2 mm, and the honeycomb bands provided with concave and convex strips are stacked layer by layer to form a hexagonal honeycomb core.

[0057] In the honeycomb formed by the method of the present invention, the distance between adjacent solder joints d≤the side length A at the node of the honeycomb unit ensures that there is at least a solder joint support within the amount of progressive telescopic deformation of the honeycomb core lattice, so that the interior of the honeycomb core is within the minimum unit There will be no cracking and twisting on the surface, the overall welding strength is relatively high, and the solder joints are evenly distributed, so the crush curve of the hon...

Embodiment 2

[0059] The size of the crush test honeycomb core: 100mm (length) × 100mm (width) × 100mm (height), the material is 304 stainless steel, the thickness is 0.13mm × the cell D5.6mm, the side length A of the node of the honeycomb unit is 3.23mm, The distance d between adjacent solder joints is set to 2mm.

[0060] The electronic universal testing machine DNS-300 is used for compression test, and the test compression speed is 5mm / s. Through repeated tests, it is proved that the manufacturing method of the present invention is stable and feasible. The crush strength curve is stable, see Figure 10 Tested compressive strength curve.

Embodiment 3

[0062] The electronic universal testing machine DNS-300 was used to carry out the compression test, the test compression speed was 5mm / s, and the following test data were obtained through the test: Table 1, the compression strength curve is shown in Figure 11 and Figure 12 shown.

[0063] Table 1, crush strength test data at different stainless steel honeycomb heights

[0064]

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Abstract

The invention discloses a honeycomb core material. The honeycomb core material is formed by welding multiple honeycomb wavebands and comprises multiple honeycomb units, wherein the honeycomb wavebands comprise free edges and node edges which are continuously arranged; the node edges which are correspondingly welded together form honeycomb unit nodes; the honeycomb unit nodes are welded through laser or resistance spot welding; welding spots of spot welding are evenly distributed; the distance between each two adjacent welding spots in the direction perpendicular to the cross section of each honeycomb unit is d; the side length at each honeycomb unit node is A; and the value of d is smaller than or equal to the value of A. According to the honeycomb core material provided by the invention, the value of d is set to be smaller than or equal to the value of A, so that at least one welding spot is guaranteed to support within progressive shrinkage deformation during compression of honeycomb core lattices, cracking and distortion cannot occur in a honeycomb core in the minimum unit during compression, instability cannot occur in the minimum unit during compression of the honeycomb, then instability cannot occur on the whole honeycomb, the high stability of the overall crushing curve of the honeycomb core material is ensured, and the crushing strength and the fluctuation of the crushing curve can be controlled and adjusted.

Description

technical field [0001] The invention relates to the field of honeycomb structure design and manufacture, in particular to a honeycomb core material. Background technique [0002] The honeycomb structure can absorb the kinetic energy of the impact during the collision compression, and play the role of cushioning and protection, and the honeycomb structure is light in weight and high in strength. Applications. [0003] At present, the main manufacturing process of energy-absorbing honeycomb is glued connection. The crush strength curves of the prior art glued aluminum honeycomb or paper honeycomb are relatively stable, but because the honeycombs are connected by glue, and the material is aluminum or paper, the strength of the material itself and the connection strength are limited The adhesive will fail, so it cannot be used in special occasions with high temperature and high pressure. At the same time, the strength of aluminum honeycomb or paper material is limited, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/22B23K26/70B23K11/11B23K11/36
CPCB23K26/22B23K26/702B23K11/11B23K11/36B23K2101/02
Inventor 郑立刚潘志金郑巧英尹名庆崔璐夏杨洋顾聪聪
Owner MAANSHAN ANDER TECH
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