On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition
Al-Cu-Li alloys exhibit a superior strength to weight ratio, making the alloys attractive for applications within aviation and aerospace. However, their widespread application has been somewhat limited by the challenges associated with porosity and crack formation during welding. The purpose of this...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Journal of Advanced Joining Processes |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666330922000024 |
| _version_ | 1817968029497032704 |
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| author | Siri Marthe Arbo Stanka Tomovic-Petrovic Jo Aunemo Nora Dahle Ola Jensrud |
| author_facet | Siri Marthe Arbo Stanka Tomovic-Petrovic Jo Aunemo Nora Dahle Ola Jensrud |
| author_sort | Siri Marthe Arbo |
| collection | DOAJ |
| description | Al-Cu-Li alloys exhibit a superior strength to weight ratio, making the alloys attractive for applications within aviation and aerospace. However, their widespread application has been somewhat limited by the challenges associated with porosity and crack formation during welding. The purpose of this study was to evaluate the weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-based Laser Metal Deposition (LMD) by using a self-produced wire. The influence of selected process parameters on deposition geometry (width, height and deposition depth), porosity, microstructure and hardness were evaluated by producing single tracks on a base plate. Defect-free tracks with minimal porosity could be produced with a laser power of 2700 W, 800 μm spot size and 1 m/min scanning speed, providing an energy density of 5.4 J/mm2. Depending on the desired deposition rate, the wire-feed rate could be varied between 1 and 1.9 m/min. The microstructure of the deposited material consisted of columnar and globular equiaxed grains with a Cu-rich second phase network throughout the deposited material. The results presented in this study show the potential in utilizing wires produced of AA2065 for laser welding and potentially additive manufacturing by wire-based LMD, increasing the possible areas of application for such high-strength, low weight alloys. |
| first_indexed | 2024-04-13T20:02:40Z |
| format | Article |
| id | doaj.art-ff38939f6fe84aaabbc33713bfc74477 |
| institution | Directory Open Access Journal |
| issn | 2666-3309 |
| language | English |
| last_indexed | 2024-04-13T20:02:40Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Advanced Joining Processes |
| spelling | doaj.art-ff38939f6fe84aaabbc33713bfc744772022-12-22T02:32:09ZengElsevierJournal of Advanced Joining Processes2666-33092022-06-015100096On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal depositionSiri Marthe Arbo0Stanka Tomovic-Petrovic1Jo Aunemo2Nora Dahle3Ola Jensrud4Corresponding author.; Department of Materials Technology, SINTEF Manufacturing, Raufoss, NO-2831 NorwayDepartment of Materials Technology, SINTEF Manufacturing, Raufoss, NO-2831 NorwayDepartment of Materials Technology, SINTEF Manufacturing, Raufoss, NO-2831 NorwayDepartment of Materials Technology, SINTEF Manufacturing, Raufoss, NO-2831 NorwayDepartment of Materials Technology, SINTEF Manufacturing, Raufoss, NO-2831 NorwayAl-Cu-Li alloys exhibit a superior strength to weight ratio, making the alloys attractive for applications within aviation and aerospace. However, their widespread application has been somewhat limited by the challenges associated with porosity and crack formation during welding. The purpose of this study was to evaluate the weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-based Laser Metal Deposition (LMD) by using a self-produced wire. The influence of selected process parameters on deposition geometry (width, height and deposition depth), porosity, microstructure and hardness were evaluated by producing single tracks on a base plate. Defect-free tracks with minimal porosity could be produced with a laser power of 2700 W, 800 μm spot size and 1 m/min scanning speed, providing an energy density of 5.4 J/mm2. Depending on the desired deposition rate, the wire-feed rate could be varied between 1 and 1.9 m/min. The microstructure of the deposited material consisted of columnar and globular equiaxed grains with a Cu-rich second phase network throughout the deposited material. The results presented in this study show the potential in utilizing wires produced of AA2065 for laser welding and potentially additive manufacturing by wire-based LMD, increasing the possible areas of application for such high-strength, low weight alloys.http://www.sciencedirect.com/science/article/pii/S2666330922000024Laser metal depositionWireAl-Cu-Li alloysAerospaceProcess parameters |
| spellingShingle | Siri Marthe Arbo Stanka Tomovic-Petrovic Jo Aunemo Nora Dahle Ola Jensrud On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition Journal of Advanced Joining Processes Laser metal deposition Wire Al-Cu-Li alloys Aerospace Process parameters |
| title | On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition |
| title_full | On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition |
| title_fullStr | On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition |
| title_full_unstemmed | On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition |
| title_short | On weldability of aerospace grade Al-Cu-Li alloy AA2065 by wire-feed laser metal deposition |
| title_sort | on weldability of aerospace grade al cu li alloy aa2065 by wire feed laser metal deposition |
| topic | Laser metal deposition Wire Al-Cu-Li alloys Aerospace Process parameters |
| url | http://www.sciencedirect.com/science/article/pii/S2666330922000024 |
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