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Method and device for resistance welding stell sandwich sheets

A technology for welding clamps and sandwich panels, which is applied in resistance welding equipment, welding equipment, metal processing equipment, etc., can solve problems such as the complicated structure of welding electrodes, achieve the effect of improving efficiency and avoiding mutual influence

Inactive Publication Date: 2017-09-26
THYSSENKRUPP STEEL EURO AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction of the welding electrode is relatively complex due to the necessity to modify the welding electrode

Method used

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  • Method and device for resistance welding stell sandwich sheets
  • Method and device for resistance welding stell sandwich sheets
  • Method and device for resistance welding stell sandwich sheets

Examples

Experimental program
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Embodiment Construction

[0045] Figure 1a A schematic representation of a first exemplary embodiment of the device 1 according to the invention for carrying out the first exemplary embodiment of the method according to the invention during warm-up is shown. The device 1 is used for resistance welding a sandwich panel 2 to at least one other, for example metallic, component 4 . The sandwich panel 2 has a thermoplastic layer 2c arranged between the metallic covering layers 2a, 2b. The device has a first welding electrode 6 arranged on one side of the sandwich panel 2 and a second welding electrode 8 arranged on one side of the other metallic component 3 .

[0046] Furthermore, the means for providing the first electrical circuit is provided with a first power source 10 and a first electrical line 12 . The current Is for welding can thus be conducted through the first welding electrode and the second welding electrode 6, 8 (at figure 2 are shown in).

[0047] Furthermore, the first welding electrode...

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Abstract

The invention relates to a method for resistance welding of a steel sandwich sheet to at least one further component, said steel sandwich sheet having two metal cover layers and a thermoplastic layer arranged between the metal cover layers. According to the invention, the region of the steel sandwich sheet to be welded is heated in such a way that the thermoplastic layer softens and is displaced from the welding region by the pressing together of the cover layers. The cover layers and the further component are welded to each other by a flow of electric current for welding in a first circuit comprising a first source via a first and a second welding electrode, the first welding electrode being arranged on the side of the steel sandwich sheet and the second welding electrode being arranged on the side of the additional component. The aim of the invention is to provide a method which is simple to carry out and which can also have a short cycle time. Said aim is achieved in that the region of the steel sandwich sheet which is to be welded is heated by a flow of current for preheating in a second circuit, said second circuit comprises an electric conductor which is arranged between the first welding electrode and the sandwich sheet and a second source.

Description

technical field [0001] The invention relates to a method for resistance welding a sandwich panel to at least one further component, wherein the sandwich panel has two metallic covering layers and a thermoplastic layer arranged between the metallic covering layers, wherein thus The region of the sandwich panel to be welded is heated, that is, the thermoplastic layer is softened and extruded from the welding region by pressing the covering layer, and the covering layer and other components are passed through a first circuit with a first power supply for The welding current flows through the first welding electrode arranged on one side of the sandwich panel and the second welding electrode arranged on the side of the other component to weld them together. Furthermore, the invention relates to a device for resistance welding sandwich panels having a thermoplastic layer arranged between metallic covering layers with at least one further component, the device having a sandwich panel...

Claims

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Application Information

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IPC IPC(8): B23K11/11B23K11/16B23K11/34
CPCB23K11/002B23K11/115B23K11/16B23K11/34
Inventor 阿泽迪纳·谢尔吉
Owner THYSSENKRUPP STEEL EURO AG
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