Application of twin arc-cold wire hybrid welding method

A hybrid welding and double-arc technology, applied in arc welding equipment, welding equipment, electrode accessories, etc., can solve problems such as small welding parameters and weld defects, reduce the probability of interference between two arcs, increase the viscosity of the molten pool, and stabilize sex improvement effect

Inactive Publication Date: 2016-08-03
TIANJIN UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

But this welding method is not suitable for smaller welding parameters
Because the middle welding wire is non-conductive, under smaller welding parameters, the other two welding wires produce less heat, so the cold wire is not easy to melt, resulting in weld defects

Method used

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  • Application of twin arc-cold wire hybrid welding method
  • Application of twin arc-cold wire hybrid welding method
  • Application of twin arc-cold wire hybrid welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0060] Implementation method: adopt the welding method of double arc and cold wire pulse hybrid welding, and implement the plate surfacing test. The specific implementation steps are as follows:

[0061] Basic steps of welding process:

[0062] (1) According to Figure 4 Connect equipment (including main system equipment and acquisition system equipment) at the position shown, and connect to a power supply with a power frequency of 50Hz;

[0063] (2) Adjust the working mode of the two PulseMIG-350, and adjust the pulse working mode of the two welding machines to one master and one slave through the front control panel, that is, the master welder guides the slave welder to send pulse signals;

[0064] (3) Adjust the preset current and voltage of the two welding machines, the preset current range: 80-220A, the preset voltage range: 18-32V;

[0065] (4) Adjust the corresponding pulse waveform input of the two welding machines, and the pulse waveform output that can be realized ...

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Abstract

The invention discloses application of a twin arc-cold wire hybrid welding method. Projection points of a cold wire conducting tube, a first guiding welding wire and a second guiding welding wire on the surface of a workpiece are three vertexes of an equilateral triangle, and in the welding direction, the cold wire conducting tube is arranged behind both the first guiding welding wire and the second guiding welding wire. As a cold wire is added into a twin arc, not only is the welding efficiency improved, but also the effects of stabilizing a molten pool and reducing heat input are achieved; and as the three wires are integrated into a welding gun which is the only one adopted for welding, the operation is simple and convenient, and application of the twin arc-cold wire hybrid welding method to gas shielded welding or submerged arc welding is realized.

Description

[0001] The application of the present invention is a divisional application of the parent application "three-wire welding torch and welding system and method for double arc and cold wire pulse composite welding". The application number of the parent application is 2015100332459, and the filing date of the parent application is January 2015 23rd. technical field [0002] The invention relates to the technical field of welding engineering, and more specifically relates to a three-wire torch, a welding system and a method for combined welding of double arcs and cold wire pulses. Background technique [0003] In recent years, the rapid development of aerospace, transportation, marine engineering and other industries has greatly promoted the progress of welding technology. The diversity of products, materials, and conditions of use has led to higher and higher requirements for welding efficiency and quality. How to use high-quality and efficient welding technology to meet the nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/24B23K9/26B23K9/28B23K9/09
CPCB23K9/24B23K9/092B23K9/26B23K9/28
Inventor 李桓向婷刘永强韦辉亮
Owner TIANJIN UNIV
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