Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints
A novel method called friction stir rivet welding (FSRW) is proposed to combine mechanical interlocking and metallurgical joining, and is expected to improve such mechanical properties and eliminate the keyhole defects in traditional friction stir spot welded (FSSW) joints. The FSRWed joint forms me...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-05-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422002691 |
| _version_ | 1818691214340259840 |
|---|---|
| author | Peng Zhang Sheng-dun Zhao Chuan-wei Zhang Shun-lai Zang Zheng Chen Liang-yu Fei Yong-fei Wang Hong Jiang Fan Li Hao Zhou |
| author_facet | Peng Zhang Sheng-dun Zhao Chuan-wei Zhang Shun-lai Zang Zheng Chen Liang-yu Fei Yong-fei Wang Hong Jiang Fan Li Hao Zhou |
| author_sort | Peng Zhang |
| collection | DOAJ |
| description | A novel method called friction stir rivet welding (FSRW) is proposed to combine mechanical interlocking and metallurgical joining, and is expected to improve such mechanical properties and eliminate the keyhole defects in traditional friction stir spot welded (FSSW) joints. The FSRWed joint forms metallurgical joining between the upper and lower sheets, while mechanical interlocking between the rivet and the surrounding plasticized materials. The spindle force, bonding mode, mechanical properties and failure mode of three joints are comparatively investigated to clarify the strengthening mechanism of FSRW method. Results indicate that the keyhole defects are successfully eliminated in FSRWed joints, and the mechanical properties of the joints are considerably improved by using the threaded rivet FSRW (T-FSRW). The spindle force requirement of T-FSRW exhibit greater than that of cylindrical rivet FSRW (C-FSRW). Similarly, compared with the FSSWed joint, the T-FSRWed joint has a 65% higher shear tension strength and 170% increase in cross tension strength, with the corresponding extension at fracture increased by 19% and 220%, respectively. Rivet geometry plays a crucial role on the joints’ mechanical properties, and determines the transverse section and joining parameters. The strengthening mechanism of the FSRW method is assumed from the combination of mechanical interlocking and metallurgical joining. In addition, analysis of the fracture morphologies demonstrate that the shear tension failures of the FSRWed joints mainly exhibit neck, shear fracture and upper sheet tensile fracture, while the cross tension failures exhibit neck fractures and rivet pull-outs. |
| first_indexed | 2024-12-17T12:38:20Z |
| format | Article |
| id | doaj.art-cee13bdd59bb486aabd8a00050c4f9ee |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-17T12:38:20Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-cee13bdd59bb486aabd8a00050c4f9ee2022-12-21T21:48:10ZengElsevierJournal of Materials Research and Technology2238-78542022-05-0118185199Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy jointsPeng Zhang0Sheng-dun Zhao1Chuan-wei Zhang2Shun-lai Zang3Zheng Chen4Liang-yu Fei5Yong-fei Wang6Hong Jiang7Fan Li8Hao Zhou9School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China; College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi PR ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China; Corresponding author.College of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi PR ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR ChinaResearch and Development Center, Wuhua Energy Technology Co., Ltd., Xi'an, 710061, Shaanxi, PR ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China; State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR ChinaSchool of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR ChinaA novel method called friction stir rivet welding (FSRW) is proposed to combine mechanical interlocking and metallurgical joining, and is expected to improve such mechanical properties and eliminate the keyhole defects in traditional friction stir spot welded (FSSW) joints. The FSRWed joint forms metallurgical joining between the upper and lower sheets, while mechanical interlocking between the rivet and the surrounding plasticized materials. The spindle force, bonding mode, mechanical properties and failure mode of three joints are comparatively investigated to clarify the strengthening mechanism of FSRW method. Results indicate that the keyhole defects are successfully eliminated in FSRWed joints, and the mechanical properties of the joints are considerably improved by using the threaded rivet FSRW (T-FSRW). The spindle force requirement of T-FSRW exhibit greater than that of cylindrical rivet FSRW (C-FSRW). Similarly, compared with the FSSWed joint, the T-FSRWed joint has a 65% higher shear tension strength and 170% increase in cross tension strength, with the corresponding extension at fracture increased by 19% and 220%, respectively. Rivet geometry plays a crucial role on the joints’ mechanical properties, and determines the transverse section and joining parameters. The strengthening mechanism of the FSRW method is assumed from the combination of mechanical interlocking and metallurgical joining. In addition, analysis of the fracture morphologies demonstrate that the shear tension failures of the FSRWed joints mainly exhibit neck, shear fracture and upper sheet tensile fracture, while the cross tension failures exhibit neck fractures and rivet pull-outs.http://www.sciencedirect.com/science/article/pii/S2238785422002691Friction stir rivet weldingWelding tool geometryBonding modeMechanical propertyFracture failure mode |
| spellingShingle | Peng Zhang Sheng-dun Zhao Chuan-wei Zhang Shun-lai Zang Zheng Chen Liang-yu Fei Yong-fei Wang Hong Jiang Fan Li Hao Zhou Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints Journal of Materials Research and Technology Friction stir rivet welding Welding tool geometry Bonding mode Mechanical property Fracture failure mode |
| title | Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints |
| title_full | Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints |
| title_fullStr | Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints |
| title_full_unstemmed | Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints |
| title_short | Bonding mode and mechanical properties of keyhole-free friction stir rivet welded aluminum alloy joints |
| title_sort | bonding mode and mechanical properties of keyhole free friction stir rivet welded aluminum alloy joints |
| topic | Friction stir rivet welding Welding tool geometry Bonding mode Mechanical property Fracture failure mode |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422002691 |
| work_keys_str_mv | AT pengzhang bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT shengdunzhao bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT chuanweizhang bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT shunlaizang bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT zhengchen bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT liangyufei bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT yongfeiwang bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT hongjiang bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT fanli bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints AT haozhou bondingmodeandmechanicalpropertiesofkeyholefreefrictionstirrivetweldedaluminumalloyjoints |