Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints
Dissimilar metals are pretty challenging to attain enhanced mechanical properties in the conventional friction stir spot welding (FSSW) process. In this research, a new filler added friction stir spot welding (FAFSSW) process is adopted for welding dissimilar aluminium alloys of AA5052 with AA6061 b...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac2771 |
| _version_ | 1797746725080793088 |
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| author | M Balamurugan Gopi S Dhanesh G Mohan |
| author_facet | M Balamurugan Gopi S Dhanesh G Mohan |
| author_sort | M Balamurugan |
| collection | DOAJ |
| description | Dissimilar metals are pretty challenging to attain enhanced mechanical properties in the conventional friction stir spot welding (FSSW) process. In this research, a new filler added friction stir spot welding (FAFSSW) process is adopted for welding dissimilar aluminium alloys of AA5052 with AA6061 by using five different tapered tool pins to enhance the mechanical and metallurgical properties of the joints. Magnesium (Mg) powder with 4.5 mg in volume fraction is considered filler material to fabricate the joints. Mechanical properties of the spot weldments like tensile shear strength test, microhardness test, and metallurgical characterizations like microstructure analysis were carried out for FAFSSW joints. The results show that a tool pin profile with 5 mm upper diameter, 2 mm lower diameter and a pin length of 1.2 mm produce a sound joint with 202.85 MPa tensile shear strength and 119.9 HV microhardness. The FAFSSW joint shows 34% higher strength than the normal FSSW joints. The microstructure analysis indicates that the Mg filler mixes well in the weld zone, and a fine grain structure is gained without any defects. |
| first_indexed | 2024-03-12T15:41:56Z |
| format | Article |
| id | doaj.art-326970cce00b4ac0b4e477f9c2ce0de6 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:56Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-326970cce00b4ac0b4e477f9c2ce0de62023-08-09T15:56:11ZengIOP PublishingMaterials Research Express2053-15912021-01-018909653110.1088/2053-1591/ac2771Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy jointsM Balamurugan0Gopi S1https://orcid.org/0000-0001-7966-1853Dhanesh G Mohan2https://orcid.org/0000-0002-4652-4198Department of Mechanical Engineering, Government College of Engineering, Bodinayakanur, Tamilnadu, IndiaDepartment of Production Engineering, Government College of Technology, Coimbatore, Tamilnadu, IndiaInstitute of Materials Joining, Shandong University , Jinan, People’s Republic of ChinaDissimilar metals are pretty challenging to attain enhanced mechanical properties in the conventional friction stir spot welding (FSSW) process. In this research, a new filler added friction stir spot welding (FAFSSW) process is adopted for welding dissimilar aluminium alloys of AA5052 with AA6061 by using five different tapered tool pins to enhance the mechanical and metallurgical properties of the joints. Magnesium (Mg) powder with 4.5 mg in volume fraction is considered filler material to fabricate the joints. Mechanical properties of the spot weldments like tensile shear strength test, microhardness test, and metallurgical characterizations like microstructure analysis were carried out for FAFSSW joints. The results show that a tool pin profile with 5 mm upper diameter, 2 mm lower diameter and a pin length of 1.2 mm produce a sound joint with 202.85 MPa tensile shear strength and 119.9 HV microhardness. The FAFSSW joint shows 34% higher strength than the normal FSSW joints. The microstructure analysis indicates that the Mg filler mixes well in the weld zone, and a fine grain structure is gained without any defects.https://doi.org/10.1088/2053-1591/ac2771friction stir spot weldingtensile shear strength testmicrostructurefiller additiontool pin profile |
| spellingShingle | M Balamurugan Gopi S Dhanesh G Mohan Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints Materials Research Express friction stir spot welding tensile shear strength test microstructure filler addition tool pin profile |
| title | Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints |
| title_full | Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints |
| title_fullStr | Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints |
| title_full_unstemmed | Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints |
| title_short | Influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints |
| title_sort | influence of tool pin profiles on the filler added friction stir spot welded dissimilar aluminium alloy joints |
| topic | friction stir spot welding tensile shear strength test microstructure filler addition tool pin profile |
| url | https://doi.org/10.1088/2053-1591/ac2771 |
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