Double arc hybrid welding power supply device

A hybrid welding and power supply technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of reducing the minimum working current, reducing the minimum welding heat input, etc., to achieve high-speed switching, improve the effect of adapting range

Active Publication Date: 2013-05-15
BEIJING UNIV OF TECH
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Problems solved by technology

[0003] The purpose of the present invention is to reduce the minimum operating current and minimum welding heat input by providing a double-arc compound weldi

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  • Double arc hybrid welding power supply device

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing description and specific embodiment, the present invention is described in further detail:

[0025] The system consists of a melting electrode arc as the main arc, and a non-melting electrode arc as the auxiliary arc. The auxiliary arc can be alternately conducted between the base metal and the welding wire. When the auxiliary arc exists between the tungsten electrode and the base metal, a similar The temperature field of twin-wire welding, when the auxiliary arc exists between the tungsten electrode and the welding wire, can increase the deposition speed, because the tungsten arc can work stably at a very low current, so this process is compared with the double melting electrode Welding can reduce the minimum working current and the minimum welding heat input, so it can be applied to the high-speed welding process problems of ultra-thin plates that cannot be solved by conventional twin-wire welding.

[0026] see figure 1 ...

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Abstract

The invention discloses a double arc hybrid welding power supply device, in which the power supply outputs current from different output terminals through the alternate conduction of a power switching device in a current switching circuit, thus ensuring that a welding arc burns among different electrodes; the switched current ratio is inversely proportional to the turn number ratio through replacing the turn number ratio of a double pack inductance in the current switching circuit; and the turn-on and turn-off in turns of two power switch tubes are fitted through the magnetic coupling effect of the double pack inductance, thus realizing a high-speed switching of the current output circuit, and a non-consumable electrode arc can switch between a tungsten electrode and a welding wire as well as between the tungsten electrode and a base metal in a high speed. Compared with the traditional double-consumable electrode welding wire arc welding process, the device disclosed by the invention can reduce the lowest critical value of the welding heat input; and compared with the simple hybrid welding of non-consumable electrode and consumable electrode, as the time switching radio of non-consumable electrode can be adjusted freely, the distribution radio of the non-consumable electrode energy, between the consumable electrode welding wire and the base metal, can be adjusted freely, thus improving the adaptation range of the welding process.

Description

technical field [0001] The invention belongs to a kind of electric arc hybrid welding equipment, which can achieve higher welding speed compared with the conventional single-wire welding system, and has smaller heat input compared with the traditional double-wire or multi-wire welding system, and can be applied to the welding of thin plates welding. In this welding process, the melting electrode arc is used as the main arc, and the non-melting electrode arc is used as the auxiliary arc. The auxiliary arc is alternately conducted between the tungsten electrode and the base metal and between the tungsten electrode and the welding wire. It can not only adjust the distribution mode of welding heat input, but also increase the amount of deposited metal, thereby effectively improving welding efficiency. The technology belongs to the technical field of thermal processing. technical background [0002] The conventional arc welding process can be divided into melting electrode arc ...

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Application Information

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IPC IPC(8): B23K9/095B23K9/167B23K9/173
Inventor 黄鹏飞张涛李泳格卢振洋白韶军
Owner BEIJING UNIV OF TECH
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