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Novel metal welding method

A new type of metal welding technology, applied in welding equipment, metal processing equipment, resistance welding equipment, etc., can solve the problems of high cost, complicated process, narrow application range, etc., and achieve prolonging life, flexible and convenient operation, and wide application range Effect

Active Publication Date: 2016-01-27
DONGFENG COMML VEHICLE CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of narrow application range, high cost and complicated process in the prior art, and provide a new metal welding method with wide application range, low cost and flexible and convenient process.

Method used

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Embodiment 1

[0038] see figure 1 , figure 2 , a novel metal welding method, which includes the following processes in sequence:

[0039] Protrusion prefabrication process: first determine the welding method used for the prefabricated protrusions according to the size and accuracy requirements of the protrusion 2 as arc welding, and then select welding material 1 according to the materials of arc welding and No. 1 metal material 1 and No. 2 metal material 5 The materials of No. 1 metal material 1 and No. 2 metal material 5 are selected to match the welding consumables, and then an arc welding machine is used to arc-weld the protrusion 2 on the position to be welded of No. 1 metal material 1, wherein No. 1 metal material 1 is The size is a rectangular tube of 40mm×30mm×1.5mm, the second metal material 5 is a thin plate with a thickness of 1mm, the penetration depth of the protrusion 2 is 0.8mm, the penetration rate is 53%, the height H is 1.8mm, and the bottom diameter is D 5mm;

[0040]...

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Abstract

Provided is a novel metal welding method. The method comprises: firstly, welding a bulge on a to-be-welded position of a first metal material, and then using a resistance welding machine or an electrode holder whose upper electrode and lower electrode are flat electrodes to weld the first metal material with the bulge with a second metal material. The design enlarges application range, improves strength of a welded joint and surface quality, and reduces production cost and prolongs service life of the electrodes.

Description

technical field [0001] The invention relates to the field of metal welding, in particular to a novel metal welding method, which is particularly suitable for expanding the scope of application, improving the strength and surface quality of welded joints, and prolonging the service life of electrodes. Background technique [0002] At present, the bus body generally adopts a rectangular tube as the skeleton and a thin plate as the skin structure, which involves a large number of connection problems between the tube and the plate. With the wide application of hydroformed tubes in automobile lightweighting, some problems of connecting pipes and plates are also involved in cars, trucks and other models, such as roof side beams, roof rails, body rails and other parts. Since the plates in these structures are mostly used as appearance parts, the surface quality should be improved as much as possible while ensuring the strength of the joints. [0003] Resistance spot welding is cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/14
Inventor 张巍巍
Owner DONGFENG COMML VEHICLE CO LTD
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