Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding
In this paper, a metal inert gas (MIG) shielded welding method was used for high-quality welding of 6063-T6 aluminum alloy sheet with a thickness of 2.5 mm. The welding process of MIG welding was accurately simulated and the welding temperature field and thermal cycle curve were calculated using a c...
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| Format: | Article |
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MDPI AG
2023-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/13/4886 |
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| author | Shuwan Cui Yunhe Yu Rong Ma Fuyuan Tian Shuwen Pang |
| author_facet | Shuwan Cui Yunhe Yu Rong Ma Fuyuan Tian Shuwen Pang |
| author_sort | Shuwan Cui |
| collection | DOAJ |
| description | In this paper, a metal inert gas (MIG) shielded welding method was used for high-quality welding of 6063-T6 aluminum alloy sheet with a thickness of 2.5 mm. The welding process of MIG welding was accurately simulated and the welding temperature field and thermal cycle curve were calculated using a combination of Gaussian body heat source and double ellipsoidal heat source. As the welding current increased from 75 A to 90 A, the reinforcing phase precipitated under the microstructure of the joint gradually became larger and re-solidified into the body, resulting in a reduction in mechanical properties. When the welding current is 85 A, the pitting resistance of weld forming and weld area reaches its optimum. At this time, the tensile strength of the joint is up to 110.9 MPa, the elongation is up to 16.3% and the Vickers Microhardness is up to 46.9 HV. |
| first_indexed | 2024-03-11T01:35:01Z |
| format | Article |
| id | doaj.art-3c0ecb8234ad4d02ba91f91fceb202f3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T01:35:01Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3c0ecb8234ad4d02ba91f91fceb202f32023-11-18T17:01:17ZengMDPI AGMaterials1996-19442023-07-011613488610.3390/ma16134886Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG WeldingShuwan Cui0Yunhe Yu1Rong Ma2Fuyuan Tian3Shuwen Pang4School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaGuangxi Liugong Machinery Co., Ltd., Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaSchool of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, ChinaIn this paper, a metal inert gas (MIG) shielded welding method was used for high-quality welding of 6063-T6 aluminum alloy sheet with a thickness of 2.5 mm. The welding process of MIG welding was accurately simulated and the welding temperature field and thermal cycle curve were calculated using a combination of Gaussian body heat source and double ellipsoidal heat source. As the welding current increased from 75 A to 90 A, the reinforcing phase precipitated under the microstructure of the joint gradually became larger and re-solidified into the body, resulting in a reduction in mechanical properties. When the welding current is 85 A, the pitting resistance of weld forming and weld area reaches its optimum. At this time, the tensile strength of the joint is up to 110.9 MPa, the elongation is up to 16.3% and the Vickers Microhardness is up to 46.9 HV.https://www.mdpi.com/1996-1944/16/13/4886MIG weldingnumerical simulation6063-T6 aluminum alloymicrostructurejoint properties |
| spellingShingle | Shuwan Cui Yunhe Yu Rong Ma Fuyuan Tian Shuwen Pang Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding Materials MIG welding numerical simulation 6063-T6 aluminum alloy microstructure joint properties |
| title | Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding |
| title_full | Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding |
| title_fullStr | Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding |
| title_full_unstemmed | Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding |
| title_short | Study on Morphology, Microstructure and Properties of 6063-T6 Aluminum Alloy Joints in MIG Welding |
| title_sort | study on morphology microstructure and properties of 6063 t6 aluminum alloy joints in mig welding |
| topic | MIG welding numerical simulation 6063-T6 aluminum alloy microstructure joint properties |
| url | https://www.mdpi.com/1996-1944/16/13/4886 |
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