Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints
Research on T-configuration aluminum constructions effectively decreases fuel consumption, increases strength, and develops aerial structures. In this research, the effects of friction stir welding (FSW) tool offset (TO) on Al–Mg–Si alloy mixing and bonding in T-configurations is studied. The proces...
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doaj-316b4280696c4ad0b3820494142571bb2021-07-15T15:40:42ZengMDPI AGMaterials1996-19442021-06-01143604360410.3390/ma14133604Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-JointsShabbir Memon0Alberto Murillo-Marrodán1Hamid M. Lankarani2Hesamoddin Aghajani Derazkola3Department of Mechanical Engineering, Wichita State University, Wichita, KS 67260-133, USADepartment of Mechanics, Design and Industrial Management, University of Deusto, Avda Universidades 24, 48007 Bilbao, SpainDepartment of Mechanical Engineering, Wichita State University, Wichita, KS 67260-133, USADepartment of Mechanical Engineering, Islamic Azad University of Nour Branch, Nour 21655432, IranResearch on T-configuration aluminum constructions effectively decreases fuel consumption, increases strength, and develops aerial structures. In this research, the effects of friction stir welding (FSW) tool offset (TO) on Al–Mg–Si alloy mixing and bonding in T-configurations is studied. The process is simulated by the computational fluid dynamic (CFD) technique to better understand the material mixing flow and the bonding between the skin and flange during FSW. According to the results, the best material flow can be only achieved at an appropriate TO. The appropriate TO generates enough material to fill the joint line and results in formation of the highest participation of the flange in the stir zone (SZ) area. The results show that, in the T-configuration, FSW joints provide raw materials from the retreating side (RS) of the flange that play a primary role in producing a sound mixing flow. The selected parameters were related to the geometric limitations of the raw sheets considered in this study. The failure point of all tensile samples was located on the flange. Surface tunneling is the primary defect in these joints, which is produced at high TOs. Among the analyzed cases, the most robust joint was made at +0.2 mm TO on the advancing side (AS), resulting in more than 60% strength of the base aluminum alloy being retained.https://www.mdpi.com/1996-1944/14/13/3604friction stir welding tool offsetAl–Mg–Si alloyT-jointprocess modelling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shabbir Memon Alberto Murillo-Marrodán Hamid M. Lankarani Hesamoddin Aghajani Derazkola |
spellingShingle |
Shabbir Memon Alberto Murillo-Marrodán Hamid M. Lankarani Hesamoddin Aghajani Derazkola Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints Materials friction stir welding tool offset Al–Mg–Si alloy T-joint process modelling |
author_facet |
Shabbir Memon Alberto Murillo-Marrodán Hamid M. Lankarani Hesamoddin Aghajani Derazkola |
author_sort |
Shabbir Memon |
title |
Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints |
title_short |
Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints |
title_full |
Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints |
title_fullStr |
Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints |
title_full_unstemmed |
Analysis of Friction Stir Welding Tool Offset on the Bonding and Properties of Al–Mg–Si Alloy T-Joints |
title_sort |
analysis of friction stir welding tool offset on the bonding and properties of al–mg–si alloy t-joints |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-06-01 |
description |
Research on T-configuration aluminum constructions effectively decreases fuel consumption, increases strength, and develops aerial structures. In this research, the effects of friction stir welding (FSW) tool offset (TO) on Al–Mg–Si alloy mixing and bonding in T-configurations is studied. The process is simulated by the computational fluid dynamic (CFD) technique to better understand the material mixing flow and the bonding between the skin and flange during FSW. According to the results, the best material flow can be only achieved at an appropriate TO. The appropriate TO generates enough material to fill the joint line and results in formation of the highest participation of the flange in the stir zone (SZ) area. The results show that, in the T-configuration, FSW joints provide raw materials from the retreating side (RS) of the flange that play a primary role in producing a sound mixing flow. The selected parameters were related to the geometric limitations of the raw sheets considered in this study. The failure point of all tensile samples was located on the flange. Surface tunneling is the primary defect in these joints, which is produced at high TOs. Among the analyzed cases, the most robust joint was made at +0.2 mm TO on the advancing side (AS), resulting in more than 60% strength of the base aluminum alloy being retained. |
topic |
friction stir welding tool offset Al–Mg–Si alloy T-joint process modelling |
url |
https://www.mdpi.com/1996-1944/14/13/3604 |
work_keys_str_mv |
AT shabbirmemon analysisoffrictionstirweldingtooloffsetonthebondingandpropertiesofalmgsialloytjoints AT albertomurillomarrodan analysisoffrictionstirweldingtooloffsetonthebondingandpropertiesofalmgsialloytjoints AT hamidmlankarani analysisoffrictionstirweldingtooloffsetonthebondingandpropertiesofalmgsialloytjoints AT hesamoddinaghajaniderazkola analysisoffrictionstirweldingtooloffsetonthebondingandpropertiesofalmgsialloytjoints |
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