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Dissimilar material connecting device and connecting method

A technology of dissimilar materials and connecting devices, applied in welding equipment, resistance welding equipment, metal processing equipment, etc., can solve problems such as insufficient connection strength, and achieve the effect of preventing pull-off

Inactive Publication Date: 2019-03-01
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to solve is the problem of insufficient connection strength for connecting dissimilar materials using existing resistance spot welding devices

Method used

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  • Dissimilar material connecting device and connecting method
  • Dissimilar material connecting device and connecting method

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Embodiment

[0036] This embodiment provides a dissimilar material connection device, figure 1 is a structural schematic diagram of the dissimilar material connecting device, and the dissimilar material connecting device includes a power source 1 , an upper electrode 2 , a lower electrode 3 and a conductive auxiliary member 4 .

[0037] Specifically, the upper electrode 2 is connected to the first output terminal of the power supply 1 , and the lower electrode 3 is connected to the second output terminal of the power supply 1 . The power supply 1 is used to supply power to the upper electrode 2 and the lower electrode 3 , and a current loop is formed between the upper electrode 2 and the lower electrode 3 . Further, the power supply 1 may be a current source. The upper electrode 2 is connected to the first output terminal of the power supply 1 through the first wire 5 , and the lower electrode 3 is connected to the second output terminal of the power supply 1 through the second wire 6 . ...

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Abstract

The invention discloses a dissimilar material connecting device and a connecting method. The connecting device comprises a power supply, an upper electrode, a lower electrode and a conductive auxiliary part, wherein the upper electrode is connected with a first output end of the power supply, and the lower electrode is connected with a second output end of the power supply; the conductive auxiliary part comprises a first column body and a second column body, one bottom surface of the first column body is connected with one bottom surface of the second column body, and the horizontal projectionof the second column body falls into the horizontal projection of the first column body; and the melting point of the second column body is higher than the melting point of a first sample, the melting point of the first sample is lower than the melting point of a second sample, the welding strength of the second column and the second sample is higher than the welding strength of the first sampleand the second sample, the height of the second column body is larger than the height of the first sample. According to the dissimilar material connecting device and the connecting method, the problemthat the connecting strength between different materials is insufficient is solved.

Description

technical field [0001] The invention relates to the technical field of connecting dissimilar materials, in particular to a connecting device and method for dissimilar materials. Background technique [0002] The traditional resistance spot welding usually adopts the method of placing the upper sample and the lower sample between the upper electrode and the lower electrode of the resistance spot welding device, wherein the upper electrode and the lower electrode are connected to the power supply respectively, and pass between the upper electrode and the lower electrode. Apply pressure to clamp the upper sample and the lower sample, and the current provided by the power supply passes through the upper electrode, the upper sample, the lower sample, and the lower electrode. According to Joule's law, heat is generated between the upper sample and the lower sample to form a weld nugget, so that a metallurgical bond is formed between the upper sample and the lower sample, so as to ...

Claims

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Application Information

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