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Resistance spot welding device for aluminum-steel special plate welding and welding method

A technology of resistance spot welding and resistance spot welding machine, which is applied in the direction of welding/welding/cutting items, resistance welding equipment, welding equipment, etc., which can solve the problems of warping and deformation of aluminum plates, low production efficiency, unsafe operation, etc., and achieve suppression Effects of warpage deformation, high production efficiency, and simplified rotating structure

Active Publication Date: 2017-09-26
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a resistance spot welding device and welding method for welding aluminum-steel dissimilar plates, which mainly solve the problems of aluminum plate warping, poor welding quality and production efficiency in the existing resistance spot welding of aluminum-steel dissimilar plates. Low and operationally unsafe technical issues

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  • Resistance spot welding device for aluminum-steel special plate welding and welding method
  • Resistance spot welding device for aluminum-steel special plate welding and welding method
  • Resistance spot welding device for aluminum-steel special plate welding and welding method

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Embodiment 1

[0037] Embodiment 1, with reference to attached figure 1, 2 , 3, the thickness of the aluminum plate 7 to be welded and the steel plate 8 to be welded are 1mm; the diameter of the center copper electrode 1 of the resistance spot welding device is 16mm, the wall thickness of the insulating ring 2 is 0.5mm, and the wall thickness of the steel sleeve 3 is 6mm. The diameter of the hard wear-resistant steel ball 4 is 5 mm, the diameter of the lower copper electrode 5 is 16 mm, and the bottom plane formed by the hard wear-resistant steel ball 4 is 0.3 mm higher than the lower surface of the central copper electrode.

[0038] The method for welding aluminum-steel dissimilar materials by using the above-mentioned resistance spot welding device comprises the following steps:

[0039] 1) Fix the steel plate 8 to be welded horizontally on the welding table of the resistance spot welding machine, place the aluminum plate 7 to be welded on the upper surface of the steel plate 8 to be weld...

Embodiment 2

[0045] Embodiment 2, with reference to attached figure 1 , 2 , 3, the thickness of the aluminum plate 7 to be welded and the steel plate 8 to be welded are 1.5mm; the center copper electrode 1 diameter of the resistance spot welding device is 16mm and the wall thickness of the insulating ring 2 is 0.8mm, and the wall thickness of the steel sleeve 3 is 8mm, The diameter of the hard wear-resistant steel ball 4 is 6 mm, the diameter of the lower copper electrode 5 is 16 mm, and the bottom plane formed by the hard wear-resistant steel ball 4 is 0.5 mm higher than the lower surface of the central copper electrode.

[0046] The method for welding aluminum-steel dissimilar materials by using the above-mentioned resistance spot welding device comprises the following steps:

[0047] 1) Fix the steel plate 8 to be welded horizontally on the welding table of the resistance spot welding machine, place the aluminum plate 7 to be welded on the upper surface of the steel plate 8 to be welde...

Embodiment 3

[0053] Embodiment 3, with reference to attached figure 1 , 2 , 3, the plate thickness of the aluminum plate 7 to be welded and the steel plate 8 to be welded are 2mm; the diameter of the center copper electrode 1 of the resistance spot welding device is 16mm and the wall thickness of the insulating ring 2 is 1mm, and the wall thickness of the steel sleeve 3 is 10mm, hard The ball diameter of the wear-resistant steel ball 4 is 8 mm, the diameter of the lower copper electrode 5 is 16 mm, and the bottom plane formed by the hard wear-resistant steel ball 4 is 0.5 mm higher than the lower surface of the central copper electrode.

[0054] The method for welding aluminum-steel dissimilar materials by using the above-mentioned resistance spot welding device comprises the following steps:

[0055] 1) Fix the steel plate 8 to be welded horizontally on the welding table of the resistance spot welding machine, place the aluminum plate 7 to be welded on the upper surface of the steel plat...

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Abstract

The invention relates to a resistance spot welding device for aluminum-steel special plate welding and a welding method. The technical problems that an existing aluminum-steel special plate resistance spot welding has aluminum plate warping deformation and is poor in welding quality, low in production efficiency and not safe in operation are mainly solved. The resistance spot welding device comprises a center copper electrode, an insulating ring, a steel sleeve, a lower portion copper electrode and an insulation pin, the steel sleeve and the center copper electrode are coaxial, a gap matched with the thickness of the insulating ring is formed between the inner wall of the steel sleeve and the center copper electrode, the outer side of the center copper electrode is sleeved with the insulating ring in an inlaid manner, and the steel sleeve, the insulating ring and the center copper electrode are fixedly connected through the insulating pin to form a whole so as to form a composite electrode; and the lower portion copper electrode and the center copper electrode are coaxial, and cooling nozzles are arranged outside the peripheries of the composite electrode and the lower portion copper electrode. The resistance spot welding device is low in manufacturing cost, high in welding efficiency and high in welding quality and meets the aluminum plate and steel plate welding requirement.

Description

technical field [0001] The present invention relates to a welding device, in particular to a resistance spot welding device and welding method for welding aluminum-steel dissimilar plates, which are used to solve the problems of poor welding quality, low production efficiency and problems in resistance spot welding of aluminum-steel dissimilar plates. Unsafe operation and other problems, especially effectively solve the problem of warping and deformation of welded joints. Background technique [0002] In order to reduce energy consumption and reduce vehicle exhaust emissions, vehicle lightweight is an inevitable development trend in the future. The aluminum-steel hybrid material body is one of the main development directions of the lightweight body at present. Spot welding is currently the most important joining method in car body manufacturing. However, the spot welding of aluminum-steel dissimilar plates faces many challenges, such as brittle intermetallic compounds at t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/11
CPCB23K11/115B23K2103/18
Inventor 王银军李永兵张超群
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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