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Aluminium alloy twin-wire dipulse welding method and welding power supply thereof

A welding power supply and double pulse technology, which is applied in the field of aluminum alloy high-speed arc welding processing, aluminum alloy double wire double pulse welding, can solve problems such as unstable welding, achieve good consistency, save volume, and reduce costs

Inactive Publication Date: 2010-08-04
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
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Problems solved by technology

But in China, double-pulse welding aluminum technology is under research, and domestic welding machines are still unable to perform stable welding of double-pulse MIG welding, let alone double-wire welding machines with a double-pulse welding expert database system.

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  • Aluminium alloy twin-wire dipulse welding method and welding power supply thereof
  • Aluminium alloy twin-wire dipulse welding method and welding power supply thereof
  • Aluminium alloy twin-wire dipulse welding method and welding power supply thereof

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Embodiment Construction

[0067] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but the implementation method and scope of protection of the present invention are not limited thereto.

[0068] Such as figure 1 As shown, it is a multifunctional digital double wire soft switch welding power supply of the present invention, which consists of a main circuit 1 and a main circuit 2, a drive and detection circuit 1 and a drive and detection circuit 2, a DSP controller 108, and an overvoltage and undervoltage protection detection module 109, and a human-computer interaction system 110 constitutes. Wherein, the main circuit 1 and the main circuit 2 have the same structure and composition, and the same is true for the driving and detecting circuit 1 and the driving and detecting circuit 2 . Taking the main circuit 1 as an example, it is composed of a rectification and filtering module 101 , a high-frequency inverter module 102 , a p...

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Abstract

The invention discloses an aluminium alloy twin-wire dipulse welding method and a welding power supply thereof. The specific method is as follows: carrying out low frequency modulation on pulse wave shapes on the basis of high frequency to obtain periodically varied pulse bursts; and carrying out efficient and superior welding on aluminium alloy through the active phase match of two branches of the pulse bursts. The welding power supply comprises IGBT soft switching main circuits which are integrated into a whole, a DSP control circuit and a man-machine interactive system. The invention puts forward realizing dipulse aluminum alloy welding on a twin-wire welding machine for the first time, realizes all digital control, directly generates eight branches of PWM signals by utilizing a software module, controls the two main circuits, and reduces the control problems caused by communication; and simultaneously, the two main circuits are concentrated on the same welding machine so that the overall structure is much smaller than the master-slave mode welding machine, in addition methods such as instantaneous energy control and the like are adopted to realize the fine control of dipulse.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy high-speed arc welding processing, in particular to the technical field of aluminum alloy double-wire double-pulse welding, and specifically refers to an aluminum alloy double-wire double-pulse welding method and a welding power source thereof. Background technique [0002] Aluminum and its alloys not only have the characteristics of small specific gravity, high strength, and strong corrosion resistance, but also have excellent extrusion performance, good weldability, and high specific strength, so they have been widely used in aviation and aerospace in recent years. , nuclear energy and military industry and other fields, and the corresponding aluminum alloy welding technology is also developing by leaps and bounds. [0003] According to the prior art, besides DC single-pulse MIG welding, there are the following welding techniques and methods for aluminum and aluminum alloys. [0004] (1)...

Claims

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Application Information

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IPC IPC(8): B23K9/09B23K9/23B23K9/095B23K9/10
Inventor 薛家祥姚屏蒙万俊魏仲华
Owner SOUTH CHINA UNIV OF TECH
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