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Method for disconnecting a short circuit during short-arc welding and welding device for short-arc welding

A welding device, short-arc technology, applied in the field of welding devices for breaking short-circuit during short-arc welding and for short-arc welding, capable of solving the problems that the welding quality cannot be improved, regardless of the duration of the short-circuit, etc. , to optimize size selection, reduce welding spatter, and reduce manufacturing costs

Active Publication Date: 2012-05-23
FRONIUS INTERNATIONAL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The disadvantage of the known method is that during any short circuit, regardless of the duration of the short circuit, the same current profile is performed with the same values ​​or parameters and waveforms
Therefore, there is no impact on the process and little improvement in weld quality

Method used

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  • Method for disconnecting a short circuit during short-arc welding and welding device for short-arc welding
  • Method for disconnecting a short circuit during short-arc welding and welding device for short-arc welding
  • Method for disconnecting a short circuit during short-arc welding and welding device for short-arc welding

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Embodiment Construction

[0024] By way of introduction, please note that the accompanying drawings will be described together in which the same reference numerals and / or the same component names are used to refer to the same components in different example embodiments, and all references throughout the specification Disclosure will be considered to have like parts having like reference numerals and / or like parts being similarly named. Also, positional information used in the specification, such as top, bottom, side, etc., indicates the drawing directly described and shown, and must be reinterpreted to accommodate the new orientation if the position changes. Similar components with similar functions have the same reference numbers but different subscripts. Furthermore, individual features or combinations of features of the different exemplary embodiments shown and described may also form a single inventive solution (or multiple solutions) according to the invention.

[0025] figure 1 A welding device...

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PUM

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Abstract

The invention relates to a method for disconnecting a short circuit (30) during short-arc welding, wherein when a short circuit (30) occurs, a time frame (32) is started, in which a defined current profile is performed to disconnect the short circuit within the time frame (32), and the current is increased if the time frame (32) is exceeded, and a corresponding welding device (1). In order to improve the welding quality, after the specifiable time frame (32) expires during a short circuit (30), said current profile for disconnecting the short circuit (30) is detected and at least one value or parameter in the disconnection of the short circuit (30) is stored or saved, wherein at least one value or parameter in the time frame (32) of the following short circuit (30) is adapted according to the stored value or parameter.

Description

technical field [0001] The invention relates to a method for opening or breaking a short circuit during short arc welding, when a short circuit occurs a time frame is started wherein a determined current profile is carried out in order to break the short circuit in the time frame and the current is increased if the time frame is exceeded . [0002] Furthermore, the invention relates to a welding device for short-arc welding, which has at least one power source, a control unit and a welding torch connected thereto. Background technique [0003] A disadvantage of the known method is that during any short circuit, regardless of the duration of the short circuit, the same current profile is performed with the same values ​​or parameters and waveforms. Therefore, there is no influence on the process, and the welding quality is hardly improved. [0004] Such methods are obtained, for example, from WO2008 / 137371A2, WO2009 / 040620A1, EP0324960A1 or DE2342710C3. Contents of the in...

Claims

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Application Information

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IPC IPC(8): B23K9/09B23K9/095
CPCB23K9/092B23K9/0953
Inventor 约瑟夫·阿特尔斯梅尔
Owner FRONIUS INTERNATIONAL GMBH