Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing
In this study, unbeveled butt joints of 2 mm thick steel and aluminum plates were welded using a laser-arc hybrid process. The influence of welding speed and wire feed speed on joint weld formation, microstructures, and mechanical properties were investigated. The results indicate that using a laser...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424025651 |
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| author | Gaoyang Yu Xiaoming Nie Lize Li Shuhai Chen Yonglei Wang |
| author_facet | Gaoyang Yu Xiaoming Nie Lize Li Shuhai Chen Yonglei Wang |
| author_sort | Gaoyang Yu |
| collection | DOAJ |
| description | In this study, unbeveled butt joints of 2 mm thick steel and aluminum plates were welded using a laser-arc hybrid process. The influence of welding speed and wire feed speed on joint weld formation, microstructures, and mechanical properties were investigated. The results indicate that using a laser-arc hybrid heat source enables good weld formation of steel/aluminum dissimilar metals without groove preparation, even under high welding speed conditions. The steel side interface formed Fe₂(Al,Si)₅ near the steel and Fe(Al,Si)₃ near the aluminum. As the welding heat input decreased, the thickness of the intermetallic compounds gradually reduced. With an increase in welding speed or wire feed speed, the tensile strength of the joint first increased and then decreased, reaching a maximum of 104.47 MPa. Cracks propagated rapidly along the intermetallic compound region, resulting in brittle fracture characteristics. The three-point bending test showed a maximum longitudinal bending angle of 53.82° and a maximum transverse bending angle of 36.54°. |
| format | Article |
| id | doaj-art-849c4a828ebd45fe82fff1f7bbee6604 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-849c4a828ebd45fe82fff1f7bbee66042024-12-26T08:55:20ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013369806989Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazingGaoyang Yu0Xiaoming Nie1Lize Li2Shuhai Chen3Yonglei Wang4Chongqing Municipal Engineering Research Center of Institutions of Higher Education for Special Welding Materials and Technology (Chongqing University of Technology), Chongqing, 400054, China; School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China; Corresponding author. Chongqing Municipal Engineering Research Center of Institutions of Higher Education for Special Welding Materials and Technology (Chongqing University of Technology), Chongqing, 400054, China.Chongqing Municipal Engineering Research Center of Institutions of Higher Education for Special Welding Materials and Technology (Chongqing University of Technology), Chongqing, 400054, China; School of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaIn this study, unbeveled butt joints of 2 mm thick steel and aluminum plates were welded using a laser-arc hybrid process. The influence of welding speed and wire feed speed on joint weld formation, microstructures, and mechanical properties were investigated. The results indicate that using a laser-arc hybrid heat source enables good weld formation of steel/aluminum dissimilar metals without groove preparation, even under high welding speed conditions. The steel side interface formed Fe₂(Al,Si)₅ near the steel and Fe(Al,Si)₃ near the aluminum. As the welding heat input decreased, the thickness of the intermetallic compounds gradually reduced. With an increase in welding speed or wire feed speed, the tensile strength of the joint first increased and then decreased, reaching a maximum of 104.47 MPa. Cracks propagated rapidly along the intermetallic compound region, resulting in brittle fracture characteristics. The three-point bending test showed a maximum longitudinal bending angle of 53.82° and a maximum transverse bending angle of 36.54°.http://www.sciencedirect.com/science/article/pii/S2238785424025651Steel/al weldLaser-arc hybridWeld formationMicrostructuresMechanical properties |
| spellingShingle | Gaoyang Yu Xiaoming Nie Lize Li Shuhai Chen Yonglei Wang Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing Journal of Materials Research and Technology Steel/al weld Laser-arc hybrid Weld formation Microstructures Mechanical properties |
| title | Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing |
| title_full | Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing |
| title_fullStr | Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing |
| title_full_unstemmed | Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing |
| title_short | Dissimilar unbeveled aluminum to steel butt joint achieved by laser-arc hybrid welding-brazing |
| title_sort | dissimilar unbeveled aluminum to steel butt joint achieved by laser arc hybrid welding brazing |
| topic | Steel/al weld Laser-arc hybrid Weld formation Microstructures Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424025651 |
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