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Dissimilar material connection device based on structural glue and auxiliary sample

A technology of dissimilar materials and connecting devices, applied in welding equipment, welding/welding/cutting items, resistance welding equipment, etc., can solve problems such as difficult to achieve effective connection and low welding strength, and achieve convenient acquisition, low cost, and device operation simple effect

Inactive Publication Date: 2018-09-18
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dissimilar material connection device based on structural glue and auxiliary samples, which solves the problem of low welding strength and difficulty in achieving effective connection between materials with large differences in physical and chemical properties in traditional devices

Method used

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  • Dissimilar material connection device based on structural glue and auxiliary sample
  • Dissimilar material connection device based on structural glue and auxiliary sample
  • Dissimilar material connection device based on structural glue and auxiliary sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A device for connecting dissimilar materials based on structural glue and auxiliary samples, including an upper electrode 1, a lower electrode 2, a power supply 3, a conductor 4, an upper sample 5, a lower sample 6, an auxiliary sample 7 and a structural adhesive 10. The upper electrode 1 and the lower electrode 2 are connected to the power supply 3 through the conductor 4, the lower sample 6 is located between the lower electrode 2 and the upper electrode 1, the upper sample 5 is located between the lower sample 6 and the upper electrode 1, and the auxiliary test The sample 7 is located between the upper sample 5 and the upper electrode 1, the upper sample 5 has structural glue 10 on one or both sides of the position to be welded, and there is a weld nugget 8 between the auxiliary sample 7 and the lower sample 6.

[0027] The upper sample 5 is a 5-series aluminum alloy material with a thickness of 1mm; the lower sample 6 is a 400Mpa low-alloy high-strength steel materia...

Embodiment 2

[0046] A device for connecting dissimilar materials based on structural glue and auxiliary samples, including an upper electrode 1, a lower electrode 2, a power supply 3, a conductor 4, an upper sample 5, a lower sample 6, an auxiliary sample 7 and a structural adhesive 10. The upper electrode 1 and the lower electrode 2 are connected to the power supply 3 through the conductor 4, the lower sample 6 is located between the lower electrode 2 and the upper electrode 1, the upper sample 5 is located between the lower sample 6 and the upper electrode 1, and the auxiliary test The sample 7 is located between the upper sample 5 and the upper electrode 1, and there is structural adhesive 10 on one or both sides of the upper sample 5 to be welded, and finally a weld nugget 8 is formed between the auxiliary sample 7 and the lower sample 6.

[0047] The auxiliary sample 7 is a disc with a diameter of 20 mm and a thickness of 1 mm, and a protrusion is prefabricated on the surface of the ce...

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Abstract

The invention provides a dissimilar material connection device based on structural glue and an auxiliary sample and belongs to the technical field of dissimilar material connection. The dissimilar material connection device comprises an upper electrode, a lower electrode, an upper layer sample, a lower layer sample, the auxiliary sample, the structural glue and the like, the upper electrode and the lower electrode are connected with a power source through an electric conductor, single side or double sides of a position to be welded of the upper layer sample are provided with the structural glue, firstly the structural glue is coated to the single side or double sides of the position to be welded of the upper layer sample, the upper electrode and the lower electrode are in open states, thelower layer sample and the upper layer sample are put in successively, the auxiliary sample is placed under the upper electrode, pressure N is applied between the electrodes, the structural glue at corresponding positions is discharged, welding is performed, a weld nugget is formed, electric current output is stopped, the pressure is maintained, the electrodes are lifted, and the welding process for one time is finished. The dissimilar material connection device has the advantages that the auxiliary sample is convenient to obtain, and the device is simple to operate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of dissimilar material connection, in particular to a dissimilar material connection device based on structural glue and auxiliary samples. It is suitable for dissimilar metals that are not easy to be directly welded by traditional methods. Background technique [0002] Resistance spot welding is an important method of joining materials and is widely used in industries such as automotive. The welding process is realized under the action of pressure. When welding, external force must be relied on to make the workpieces to be welded in close contact. The welding current releases resistance heat through the workpieces to achieve welding. [0003] In traditional resistance spot welding, the upper sample and the lower sample are usually placed between the upper electrode and the lower electrode of the resistance spot welding equipment, wherein the upper electrode and the lower electrode are respectively connecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/11B23K11/20B23K11/34B23K11/36B23K103/18
CPCB23K11/115B23K11/20B23K11/34B23K11/36
Inventor 张永强付参伊日贵鞠建斌杨建炜章军
Owner SHOUGANG CORPORATION
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