Arc welding system and method with low energy input

An arc welding, low-energy technology, applied in the field of low-energy input arc welding systems, can solve the problems of difficult promotion of welding wire, complicated control, and difficult realization, etc., to achieve improved arc stability, simple overall control, and strong arc stability Effect

Inactive Publication Date: 2007-06-27
BEIJING UNIV OF TECH
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Problems solved by technology

However, no matter what kind of process is used, there are big shortcomings: the first form requires real-time control of the movement of the motor according to the welding state in the welding cycle of more than ten microseconds, so that it can complete the positive and negative rotation according to the requirements of the welding process. Its control is complicated and it is difficult to realize; the second form uses special welding wire and is not easy to promote

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  • Arc welding system and method with low energy input
  • Arc welding system and method with low energy input
  • Arc welding system and method with low energy input

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Embodiment Construction

[0031] The present embodiment will now be described with reference to the drawings. (embodiment carries out the welding of butt weld seam at the 3A21 aluminum alloy plate of 1mm thickness)

[0032] A concrete example of the present invention is a low-energy input arc welding system structure diagram shown in Figures 1 and 2, which generally includes two parts: a welding system and a wire feeding system 3 .

[0033]The welding system includes a main circuit part 1 and a control circuit part 2 with TMS320F2812DSP as the core. The input voltage of the main circuit is three-phase 380V; the input rectification 1.1 is rectified by Fuji rectifier bridge, the model is FUJ 6RI100G-160; Ultrafine crystal magnetic core, the transformation ratio is 15:2; filter 1.6 adopts magnetic core saturated inductance, the inductance is about 30μH. The control circuit part 2 adopts a control system based on TMS320F2812DSP, which mainly completes parameter calculation, proportional-integral adjustme...

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Abstract

The present invention belongs to the field of welding equipment and automation technology, and is especially arc welding system and method with low energy input. The arc welding system operates in wire pulling and pushing feed mode, and has one welding system and one wire feeding system. The welding system includes one main circuit for providing the welding power directly and one control circuit for controlling the output power of the main circuit. The wire feeding system includes one upper computer, one motor controller and one wire feeding motor connected together. The wire feeding motor is AC servo motor and the upper computer has motor rotating program for setting the welding wire motion locus to control the welding process. The present invention has the advantages of simple control method and stable arc length.

Description

technical field [0001] The invention relates to a low-energy input arc welding system and method, and belongs to the field of welding equipment and automation. Background technique [0002] Low energy input arc welding is a welding method for thin plates, which is still in its infancy. People have different understandings of this method, and there is no consensus on many issues. At present, there are two main welding methods, one is called cold metal transfer welding, and the other is called cold arc welding. Both of these welding methods use the droplet transfer method of short-circuit transfer, but their process characteristics are quite different. For the first form, the push-pull wire feeding method is adopted, and a specially designed wire feeding system is used. The wire feeding machine can complete the forward and reverse actions at a high frequency. The wire machine and the wire feeder respond to withdraw the welding wire, so that the welding wire and the droplet ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/133B23K9/10B23K9/095B23K9/09G05B19/042
Inventor 卢振洋黄鹏飞张撼鹏殷树言高文宁
Owner BEIJING UNIV OF TECH
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