InFocus electric arc synchronous welding method for two sides of T-shaped connector

A welding method and arc welding technology, applied in arc welding equipment, welding equipment, welding/welding/cutting items, etc., can solve the problems of high cost of laser synchronous welding, low joint strength, large welding deformation, etc., and achieve interchangeability of consumables Good performance, improved welding quality, and reduced equipment costs

Inactive Publication Date: 2015-12-16
SHANGHAI SPACE PRECISION MACHINERY RES INST
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  • Abstract
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Problems solved by technology

[0004] The present invention aims to solve the problems of large welding deformation, low joint strength, many pores, low efficiency and high cost of laser synchronous welding in the traditional welding method of T-shaped joints, and proposes a new method, that is, a T-shaped joint InFocus Arc Synchronous Welding Method on Both Sides of Type Joint

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  • InFocus electric arc synchronous welding method for two sides of T-shaped connector
  • InFocus electric arc synchronous welding method for two sides of T-shaped connector
  • InFocus electric arc synchronous welding method for two sides of T-shaped connector

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specific Embodiment approach 1

[0027] Specific embodiment one: a kind of T-joint bilateral InFocus arc synchronous welding method of the present embodiment, it is carried out according to the following steps:

[0028] Step 1: Process the part of the workpiece to be welded into a groove or not. Before welding, grind the double-sided symmetrical welding groove and the surface within 30mm of the two sides, and then clean the groove and both sides of the groove with acetone. side surface;

[0029] Step 2: the workpiece is fixed on the fixture to be welded;

[0030] Step 3: Keep the included angle between the InFocus welding torch and the longitudinal surface of the T-shaped joint panel as α, where α is 30° to 45°, and the included angle β with the T-shaped bottom plate is 30°;

[0031] Step 4: Set the process parameters. In the InFocus arc synchronous welding on both sides of the T-joint, the welding current is 300A~900A; the gas flow rate of the arc welding torch is 15L / min~30L / min; the welding speed is 0.6m / ...

specific Embodiment approach 2

[0034] Embodiment 2: This embodiment differs from Embodiment 1 in that the welding is carried out along the normal direction of the transverse surface of the T-shaped joint panel. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0035] Embodiment 3: This embodiment differs from Embodiment 1 in that: the InFocus arc synchronous welding on both sides of the T-shaped joint means that two InFocus welding torches are symmetrically distributed on both sides of the T-shaped joint and welded simultaneously. Others are the same as in the first embodiment.

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Abstract

The invention relates to an InFocus electric arc synchronous welding method for the two sides of a T-shaped connector. The method comprises the steps that firstly, a workpiece is treated and fixed through a clamp; secondly, the included angle alpha between an InFocus welding gun and the longitudinal surface of a T-shaped connector faceplate is kept to be 30-45 degrees, and the included angle beta between the InFocus welding gun and a T-shaped base plate is kept to be 30 degrees; thirdly, technological parameters are set, the welding current is 300 A-900 A, the gas flow of the electric arc welding gun is 15 L/min-30 L/min, the welding speed is 0.6 m/min-3.0 m/min, and the wire feeding speed is 4.0 m/min-10.0 m/min; and fourthly, welding is conducted. Compared with the peak value of a traditional tungsten inert gas (TIG) electric arc 400A, the acting force and the energy density of the current are large; the welding of a keyhole can be achieved; the InFocus electric arc synchronous welding method is big in welding penetration and high in welding speed; the welding efficiency is greatly improved; a middle thick plate can be welded.

Description

technical field [0001] The invention relates to a double-sided InFocus arc synchronous welding method of a T-shaped joint, which belongs to the field of material processing engineering. Background technique [0002] T-shaped structures are widely used in industries such as ships, aerospace and vehicles. With the development of ships, aerospace and vehicles to large tonnage and large carrying capacity, the demand for thick T-shaped structures is increasing. Therefore, increasing the thickness The welding efficiency and welding quality of the plate T-joint are of great significance. At present, for T-joints, the widely used welding process is to weld the weld seam on one side first, then use carbon arc gouging to do the root cleaning work or plan out the groove on the other side, and then weld the other side of the weld seam. Its disadvantages are low welding efficiency, long welding cycle, and large welding deformation. After the first weld is welded by one-sided sequential ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/235B23K9/095B23K101/18
CPCB23K9/0026B23K9/095B23K9/164B23K9/235B23K2101/18
Inventor 胡佩佩李中权成群林张小龙孙锡建雷正龙
Owner SHANGHAI SPACE PRECISION MACHINERY RES INST
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