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Single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method

An arc welding method and a single power supply technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problem of space accessibility limitation of the back welding gun synchronously controlled by two guns

Inactive Publication Date: 2010-09-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of the limited space accessibility of the two guns in the double-sided double-arc welding method.

Method used

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  • Single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method
  • Single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method
  • Single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method

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specific Embodiment approach 1

[0014] Specific implementation mode one : The double TIG arc welding method of single power supply and single side series connection of the present embodiment, it adopts a welding power supply 3 and two welding torches, and described two welding torches are the first TIG welding torch 1 and the second TIG welding torch 2;

[0015] The first TIG welding torch 1 is connected to the positive output terminal of the welding power supply 3, and the second TIG welding torch 2 is connected to the negative output terminal of the welding power supply 3;

[0016] During welding, turn on the welding power supply 3 so that the first TIG welding torch 1 and the second TIG welding torch 2 are on the same surface to be welded of the workpiece to be welded, and the current follows the "first TIG welding torch 1 - the workpiece to be welded - the second TIG welding torch" 2" direction, a molten pool is generated between the first TIG welding torch 1 and the workpiece to be welded, and between ...

specific Embodiment approach 2

[0025] Specific implementation mode two : This embodiment is a further limitation to Embodiment 1. In the single-power single-sided series double TIG arc welding method of this embodiment, the first TIG welding torch 1 and the second TIG welding torch 2 are arranged in front and back along the welding direction for welding, and the second The TIG welding torch 2 remelts the weld bead of the first TIG welding torch 1 . see image 3 , where V represents the moving direction of the welding torch.

specific Embodiment approach 3

[0026] Specific implementation mode three : This embodiment is a further limitation to Embodiment 1 or 2. In the single-power, single-sided series-connected double TIG arc welding method of this embodiment, the first TIG welding torch 1 and the second TIG welding torch 2 are arranged horizontally perpendicular to the welding direction for welding . see Figure 4 , where V represents the moving direction of the welding torch, and the vertical paper faces inward in the figure.

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Abstract

The invention discloses a single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method which relates to a welding method and solves the problems of synchronous control of two guns and limited space accessibility of a back surface welding gun in a traditional double-surface double-arc welding method. In the single power supply single-surface serial double-TIG arc welding method, one welding power supply and two welding guns are adopted; the two welding guns are a first TIG welding gun and a second TIG welding gun; the first TIG welding gun is connected with a positive output end of the welding power supply; the second TIG welding gun is connected with a negative output end of the welding power supply; the two welding guns are arranged on the same surface to be welded of a workpiece to be welded during welding; current flows in the direction of the first TIG welding gun->the workpiece to be welded->the second TIG welding gun; a melting pool is respectively produced between the first TIG welding gun and the workpiece to be welded and between the second TIG welding gun and the workpiece to be welded; the other welding method is characterized in that only one welding gun is adopted and two tungsten poles are installed on the welding gun for welding. The method can be applied to the welding of thick plates and the high-speed welding of thin plates.

Description

technical field [0001] The invention relates to a welding method, in particular to a double-arc welding method. Background technique [0002] High-efficiency welding methods have always been a research hotspot in the field of welding. The key to efficient welding is the welding heat source. The early approach was to increase the energy density of a single heat source, such as compressed plasma arc, laser welding, electron beam welding, etc. However, with the increase of energy density, the price of welding equipment has become more and more expensive, which limits the application range of these efficient welding methods. In recent years, low-cost, high-efficiency hybrid welding methods have developed rapidly, and have played the role of "1+1>2". . Among them, double-arc welding has the advantages of simple implementation and easy promotion, and has been extensively studied. [0003] Judging from the research status at home and abroad, the double-arc welding methods s...

Claims

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Application Information

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IPC IPC(8): B23K9/167
Inventor 张广军肖珺高洪明吴林李海超
Owner HARBIN INST OF TECH
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