Fronius International Gmbh

Peter Lattner

Josef Artelsmair

Herbert Staufer

Christian Magerl

Franz Peter Musil

Wolfgang Kruglhuber

Uwe Kroiss

Robert Eberl

Martin Willinger

Christian Krell

Daniel Itzenberger

Thomas Rauch

Günther Neubacher

Bernhard Eckl

Manuel Strasser

Axel Hörzing

Operating panel () for a welding device (SG) comprising a welding parameter display unit () for displaying welding parameters, and comprising at least one operating element () which can be actuated manually by a user, wherein the operating panel () can be switched between a welding parameter selection mode and a welding parameter editing mode by actuating the operating element (), wherein in the welding parameter selection mode one of the welding parameters of the welding parameter display unit () can be selected by rotating the operating element (), and wherein in the welding parameter editing mode a parameter value of a selected welding parameter of the welding parameter display unit () can be set by rotating the operating element ().

Operating panel for a welding device

A method for synchronizing welding currents of at least two welding current sources prior to performing a simultaneous welding process on at least one workpiece, in particular a welding process with non-consumable electrodes, wherein the method includes the following steps: a first welding current source outputting a reference signal, wherein the reference signal contains synchronization information; a second welding current source measuring or receiving the reference signal and evaluating the synchronization information contained in the reference signal; synchronizing a second welding current of the second welding current source with a first welding current of the first welding current source on the basis of the synchronization information. The invention furthermore relates to a welding current source and to a system having at least two welding current sources.

Method for synchronizing welding currents, and welding current source and system comprising at least two welding current sources

In order to easily regulate the supply of welding wire to the welding point during a welding process, the electrical potential produced by the welding current around the electrode is tapped with the welding wire and the control of the welding wire feed speed is carried out on the basis of the tapped potential and this control results in an average welding wire feed speed being established.

Welding device and welding method with self-setting welding wire feed speed

The invention relates to a method and a device () for welding by means of a non-consumable electrode (), wherein a welding current (I) alternating in polarity at a welding frequency (f) is applied by a current source () between the electrode () and a workpiece () in order to form an arc (), and the polarity is changed back to the polarity before the polarity change if the voltage (U) is above the voltage threshold value (U, U) and the welding current (I) is below the current threshold value (I, I). According to the invention, the welding voltage (U) and the welding current (I) after a preset duration (&#x394;t) after the polarity change are compared with the voltage threshold value (U, U) and the current threshold value (I, I), and in addition the power (P) in the arc () is determined, and the polarity is changed back if the welding voltage (U) is greater than the voltage threshold value (U, U), and/or if the welding current (I) is less than the current threshold value (I, I), and/or the determined power (P) is less than a preset power threshold value (P).

Method and device for welding by means of a non-consumable electrode

The invention relates to a welding device () having a welding torch (), a feeder () for feeding a melting filler material () at a feed rate (v) to a weld (S), where the filler material () is melted with the aid of an electric arc (L), and a pre-heater () for heating the filler material () upstream of the weld (S) by means of a laser beam () having a laser power (P) and generated in a laser device (). For space-saving and safe heating of the filler material () upstream of the weld (S), the pre-heater () includes a feed channel () for the filler material (), and at least one deflector () is attached to the pre-heater () for deflecting the laser beam () to the filler material () in such a way that the laser beam () strikes the filler material () inside the feed channel () of the pre-heater ().

Welding device with a laser preheater for filler wire

Burner for a welding apparatus having a non-melting electrode, a wire feed device for a welding wire and a power feed device for introducing an electric heating current into the welding wire that is supplied. The wire feed device can be activated in two directions of advance and an electric voltage applied by the power feed device to the welding wire can be regulated to ignite an igniting arc between the tip of the welding wire and the workpiece.

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Kematen am Innbach, Austria

Peter Lattner