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Glue welding connection method

A connection method and glue welding technology, which is applied in the field of material engineering, can solve the problems that the mechanical properties of the joint are difficult to meet the actual use requirements, the application range is narrow, and the connection is difficult, so as to improve material utilization, reduce material loss, and shear strength. Improved effect

Inactive Publication Date: 2005-09-07
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for difficult-to-weld materials, due to metallurgical reasons, it is difficult to achieve a good connection by welding, such as welding between metals such as magnesium and aluminum.
Second, the mechanical properties of joints are difficult to meet the actual use requirements
But this kind of glue welding technology is the mutual promotion of point bonding (resistance spot welding) and surface bonding (glue bonding), the connection strength needs to be further improved, and the application range is also narrow

Method used

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  • Glue welding connection method

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Embodiment Construction

[0019] Fusion welding is explained using laser welding as an example.

[0020] step one:

[0021] Clean the sample with acetone before welding. The welding sample is made of magnesium alloy, aluminum alloy, titanium alloy, steel and other metals. It can be welded between the same metal or different metals. Here we take the connection between the same metal of 1.5mm magnesium alloy AZ31B as an example to illustrate. Degrease the joint surface, and clean the surface of the overlapping area with a wire brush after drying to remove the oxide film.

[0022] Step two:

[0023] Apply an adhesive layer 4 between the overlapping areas of the welded sheet 1 and the welded sheet 5, where the adhesive layer generally refers to various cured adhesives, and the thickness of the adhesive layer 4 is 0.5 mm.

[0024] Step three:

[0025] The welding plate 1 and the welding plate 5 are pressed tightly by a welding jig.

[0026] Step four:

[0027] The laser welding process is adopted, and...

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Abstract

The invention is the glue welding method and belongs to the material engineering technology field. It relates to the new jointing method adopting glue joint and welding. The procedure is: coat a layer of glue on the overlap areas of the surfaces of the two layers of the waiting materials, then adopt welding hot resource overlapping to realize fine joint of the adapters. The invention can fulfill the effective integrate of mechanic joint, metallurgy joint and chemical joint, improve the loading capacity, the fatigue intensity, the cut intensity, solve the problem of hard jointing of same or different metals, reduce the material wastage and meet the demand of the practical project. The invention is suitable for the jointing of magnesium alloy, Al alloy, Ti alloy and steel and obtains the joints with fine performance.

Description

technical field [0001] The invention belongs to the technical field of material engineering. It relates to a new connection technology that combines bonding and welding, and is especially suitable for the connection between magnesium alloys, aluminum alloys, titanium alloys, steel and other metals and between different metals, and can obtain high-performance connection joints. Background technique [0002] The wide application of new materials must be supported by advanced connection technology. Currently welding processes are widely used, but there are many limitations. First, dissimilar metal connections. Due to the application of a large number of new materials, the connection of different materials has become inevitable. However, for difficult-to-weld materials, due to metallurgical reasons, it is difficult to achieve a good connection by welding, such as welding between metals such as magnesium and aluminum. Second, the mechanical properties of joints are difficult ...

Claims

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Application Information

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IPC IPC(8): B23K28/02
Inventor 刘黎明宋刚王恒
Owner DALIAN UNIV OF TECH
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