Advanced Functions of a Modern Power Source for GMAW Welding of Steel

This paper evaluates the use of a modern welding power source equipped with advanced arc control functions. At the Laboratory of Welding Technologies of CTU in Prague we have focused on GMAW welding of steel using Sigma Galaxy, a modern welding power source produced by Migatronic. Sigma Galaxy is eq...

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Main Authors: Ladislav Kolařík, Marie Kolaříková, Karel Kovanda, Marek Pantůček, Petr Vondrouš
Format: Article
Language:English
Published: CTU Central Library 2012-01-01
Series:Acta Polytechnica
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/1600
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author Ladislav Kolařík
Marie Kolaříková
Karel Kovanda
Marek Pantůček
Petr Vondrouš
author_facet Ladislav Kolařík
Marie Kolaříková
Karel Kovanda
Marek Pantůček
Petr Vondrouš
author_sort Ladislav Kolařík
collection DOAJ
description This paper evaluates the use of a modern welding power source equipped with advanced arc control functions. At the Laboratory of Welding Technologies of CTU in Prague we have focused on GMAW welding of steel using Sigma Galaxy, a modern welding power source produced by Migatronic. Sigma Galaxy is equipped with functions called Intelligent Arc Control and Sequence Repeat. According to the manufacturer, controlling an arc by these functions should significantly stabilize the welding process, lower the heat input and the deformation, and improve the weld quality. To evaluate the benefits of these functions completely, single V butt welds were performed on S275J2 structural steel 10 mm in thickness (2 weld layers: root+capping layer) in PF and PG positions. Welding was monitored by the Welding Information System, and was compared with standard GMAW welding. The results have shown that these “intelligent” functions offer significant advantages for steel welding, especially in vertical and overhead positions, because they lower the heat input and improve the weld metal control.
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spelling doaj.art-7134610c43a14b5ba9fd927529afa1902022-12-22T02:48:35ZengCTU Central LibraryActa Polytechnica1210-27091805-23632012-01-015241600Advanced Functions of a Modern Power Source for GMAW Welding of SteelLadislav KolaříkMarie KolaříkováKarel KovandaMarek PantůčekPetr VondroušThis paper evaluates the use of a modern welding power source equipped with advanced arc control functions. At the Laboratory of Welding Technologies of CTU in Prague we have focused on GMAW welding of steel using Sigma Galaxy, a modern welding power source produced by Migatronic. Sigma Galaxy is equipped with functions called Intelligent Arc Control and Sequence Repeat. According to the manufacturer, controlling an arc by these functions should significantly stabilize the welding process, lower the heat input and the deformation, and improve the weld quality. To evaluate the benefits of these functions completely, single V butt welds were performed on S275J2 structural steel 10 mm in thickness (2 weld layers: root+capping layer) in PF and PG positions. Welding was monitored by the Welding Information System, and was compared with standard GMAW welding. The results have shown that these “intelligent” functions offer significant advantages for steel welding, especially in vertical and overhead positions, because they lower the heat input and improve the weld metal control.https://ojs.cvut.cz/ojs/index.php/ap/article/view/1600weldingGMAWIACsequence repeat
spellingShingle Ladislav Kolařík
Marie Kolaříková
Karel Kovanda
Marek Pantůček
Petr Vondrouš
Advanced Functions of a Modern Power Source for GMAW Welding of Steel
Acta Polytechnica
welding
GMAW
IAC
sequence repeat
title Advanced Functions of a Modern Power Source for GMAW Welding of Steel
title_full Advanced Functions of a Modern Power Source for GMAW Welding of Steel
title_fullStr Advanced Functions of a Modern Power Source for GMAW Welding of Steel
title_full_unstemmed Advanced Functions of a Modern Power Source for GMAW Welding of Steel
title_short Advanced Functions of a Modern Power Source for GMAW Welding of Steel
title_sort advanced functions of a modern power source for gmaw welding of steel
topic welding
GMAW
IAC
sequence repeat
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/1600
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AT mariekolarikova advancedfunctionsofamodernpowersourceforgmawweldingofsteel
AT karelkovanda advancedfunctionsofamodernpowersourceforgmawweldingofsteel
AT marekpantucek advancedfunctionsofamodernpowersourceforgmawweldingofsteel
AT petrvondrous advancedfunctionsofamodernpowersourceforgmawweldingofsteel