JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES

This contribution presents metallurgical joining of Mg alloy AZ 31B by several technologies - Friction Stir Welding - FSW, Laser Beam Welding - LBW, soldering and their mutual comparison. The difficulty of joining Mg alloys is connected with the strong MgO layer, low ductility of the weld metal (WM)...

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Main Authors: Tomáš Kramár, Petr Vondrouš, Miroslav Jáňa, Tomáš Kupec
Format: Article
Language:English
Published: CTU Central Library 2019-07-01
Series:Acta Polytechnica
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/5190
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author Tomáš Kramár
Petr Vondrouš
Miroslav Jáňa
Tomáš Kupec
author_facet Tomáš Kramár
Petr Vondrouš
Miroslav Jáňa
Tomáš Kupec
author_sort Tomáš Kramár
collection DOAJ
description This contribution presents metallurgical joining of Mg alloy AZ 31B by several technologies - Friction Stir Welding - FSW, Laser Beam Welding - LBW, soldering and their mutual comparison. The difficulty of joining Mg alloys is connected with the strong MgO layer, low ductility of the weld metal (WM), a presence of intermetallic phases connected with the hardness increase. To successfully join Mg alloys, a precise setting of welding parameters is needed. The welds are susceptible to low mechanical properties as all samples fractured at WM. From the tested methods, laser beam welding proved the best results, because laser welding is the fastest and weld strength reached the highest values, i.e. 87% of BM (base metal) strength.
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spelling doaj.art-0e40ad00743e44e2bc33709db1bed9a22022-12-21T19:48:32ZengCTU Central LibraryActa Polytechnica1210-27091805-23632019-07-0159329229810.14311/AP.2019.59.02924463JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIESTomáš Kramár0Petr Vondrouš1Miroslav JáňaTomáš KupecCzech Technical University in Prague Faculty of Mechanical EngineeringCzech Technical University in Prague Faculty of Mechanical EngineeringThis contribution presents metallurgical joining of Mg alloy AZ 31B by several technologies - Friction Stir Welding - FSW, Laser Beam Welding - LBW, soldering and their mutual comparison. The difficulty of joining Mg alloys is connected with the strong MgO layer, low ductility of the weld metal (WM), a presence of intermetallic phases connected with the hardness increase. To successfully join Mg alloys, a precise setting of welding parameters is needed. The welds are susceptible to low mechanical properties as all samples fractured at WM. From the tested methods, laser beam welding proved the best results, because laser welding is the fastest and weld strength reached the highest values, i.e. 87% of BM (base metal) strength.https://ojs.cvut.cz/ojs/index.php/ap/article/view/5190Mg alloy, AZ31SolderingFSWLBWIntermetallic phase
spellingShingle Tomáš Kramár
Petr Vondrouš
Miroslav Jáňa
Tomáš Kupec
JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
Acta Polytechnica
Mg alloy, AZ31
Soldering
FSW
LBW
Intermetallic phase
title JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
title_full JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
title_fullStr JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
title_full_unstemmed JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
title_short JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES
title_sort joinig of mg alloy az31b by selected technologies
topic Mg alloy, AZ31
Soldering
FSW
LBW
Intermetallic phase
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/5190
work_keys_str_mv AT tomaskramar joinigofmgalloyaz31bbyselectedtechnologies
AT petrvondrous joinigofmgalloyaz31bbyselectedtechnologies
AT miroslavjana joinigofmgalloyaz31bbyselectedtechnologies
AT tomaskupec joinigofmgalloyaz31bbyselectedtechnologies