Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels
This study investigates the application of Friction Stir Welding (FSW) for fabricating stiffened structures in AA2219-T31 using a T-lap configuration. These structures are vital in various applications where weight is a crucial factor, including aircraft fuselages, railway cars and automotive parts....
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S026412752400813X |
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| author | Douglas Wagner Matteo Bernardi Felix Grassel Ting Chen Kai Schimanski Luciano Bergmann Benjamin Klusemann |
| author_facet | Douglas Wagner Matteo Bernardi Felix Grassel Ting Chen Kai Schimanski Luciano Bergmann Benjamin Klusemann |
| author_sort | Douglas Wagner |
| collection | DOAJ |
| description | This study investigates the application of Friction Stir Welding (FSW) for fabricating stiffened structures in AA2219-T31 using a T-lap configuration. These structures are vital in various applications where weight is a crucial factor, including aircraft fuselages, railway cars and automotive parts. This study assesses the formation dynamics of lack of bonding in single-pass welds, including the examination of microstructure, hardness, mechanical properties, and fracture locations. A second welding pass was employed over the initial weld to eliminate the lack of bonding. The implementation of a second welding pass significantly improves joint efficiency, achieving up to 90 % of the ultimate tensile strength in the skin direction and 95 % in the stiffener direction, establishing a new benchmark for AA2219-T31 T-joints. Additionally, no significant differences in grain size were found between single- and double-pass welds, highlighting the lack of bonding as key factor affecting the strength of the joints. The proposed method offers valuable insights for future industrial applications to avoid defects such as lack of bonding. |
| format | Article |
| id | doaj-art-df1866f5f2c24ad48f71337dc764de3f |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-df1866f5f2c24ad48f71337dc764de3f2024-12-05T05:19:19ZengElsevierMaterials & Design0264-12752024-11-01247113438Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panelsDouglas Wagner0Matteo Bernardi1Felix Grassel2Ting Chen3Kai Schimanski4Luciano Bergmann5Benjamin Klusemann6Helmholtz-Zentrum Hereon, Institute of Material and Process Design, Solid State Materials Processing, Max-Planck-Straße 1, 21502 Geesthacht, Germany; Laboratório de Metalurgia Física, LAMEF, Universidade Federal do Rio Grande do Sul, UFRGS, Porto Alegre, RS, BrazilHelmholtz-Zentrum Hereon, Institute of Material and Process Design, Solid State Materials Processing, Max-Planck-Straße 1, 21502 Geesthacht, Germany; Corresponding author.Helmholtz-Zentrum Hereon, Institute of Material and Process Design, Solid State Materials Processing, Max-Planck-Straße 1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Institute of Material and Process Design, Solid State Materials Processing, Max-Planck-Straße 1, 21502 Geesthacht, GermanyAirbus Operations GmbH – Bremen, ME Industrial Metallic Engineer, GermanyHelmholtz-Zentrum Hereon, Institute of Material and Process Design, Solid State Materials Processing, Max-Planck-Straße 1, 21502 Geesthacht, GermanyHelmholtz-Zentrum Hereon, Institute of Material and Process Design, Solid State Materials Processing, Max-Planck-Straße 1, 21502 Geesthacht, Germany; Leuphana University Lüneburg, Institute for Production Technology and Systems, Universitätsallee 1, 21335 Lüneburg, GermanyThis study investigates the application of Friction Stir Welding (FSW) for fabricating stiffened structures in AA2219-T31 using a T-lap configuration. These structures are vital in various applications where weight is a crucial factor, including aircraft fuselages, railway cars and automotive parts. This study assesses the formation dynamics of lack of bonding in single-pass welds, including the examination of microstructure, hardness, mechanical properties, and fracture locations. A second welding pass was employed over the initial weld to eliminate the lack of bonding. The implementation of a second welding pass significantly improves joint efficiency, achieving up to 90 % of the ultimate tensile strength in the skin direction and 95 % in the stiffener direction, establishing a new benchmark for AA2219-T31 T-joints. Additionally, no significant differences in grain size were found between single- and double-pass welds, highlighting the lack of bonding as key factor affecting the strength of the joints. The proposed method offers valuable insights for future industrial applications to avoid defects such as lack of bonding.http://www.sciencedirect.com/science/article/pii/S026412752400813XFriction stir weldingT-JointAluminium alloyMechanical behaviourMicrostructure analysis |
| spellingShingle | Douglas Wagner Matteo Bernardi Felix Grassel Ting Chen Kai Schimanski Luciano Bergmann Benjamin Klusemann Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels Materials & Design Friction stir welding T-Joint Aluminium alloy Mechanical behaviour Microstructure analysis |
| title | Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels |
| title_full | Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels |
| title_fullStr | Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels |
| title_full_unstemmed | Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels |
| title_short | Analysis of mechanical properties and microstructure of single and double-pass friction stir welded T-joints for aluminium stiffened panels |
| title_sort | analysis of mechanical properties and microstructure of single and double pass friction stir welded t joints for aluminium stiffened panels |
| topic | Friction stir welding T-Joint Aluminium alloy Mechanical behaviour Microstructure analysis |
| url | http://www.sciencedirect.com/science/article/pii/S026412752400813X |
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