Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire
Compared with single-sided welding, double-sided welding can melt through thicker workpieces and improve the mechanical performance of the weld. In this work, laser welding with filler wire of 2195 Al–Li alloy plates is conducted via double-sided out-of-sync welding. By combining experiment and nume...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-03-01
|
| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2021-0043 |
| _version_ | 1811203710626299904 |
|---|---|
| author | Xv Qihang Tian Gan Zhang Wei Yang Zhengwei Ming Anbo |
| author_facet | Xv Qihang Tian Gan Zhang Wei Yang Zhengwei Ming Anbo |
| author_sort | Xv Qihang |
| collection | DOAJ |
| description | Compared with single-sided welding, double-sided welding can melt through thicker workpieces and improve the mechanical performance of the weld. In this work, laser welding with filler wire of 2195 Al–Li alloy plates is conducted via double-sided out-of-sync welding. By combining experiment and numerical simulation results, the influence laws of the weld’s mechanical properties are studied by considering the condition of both sides under different welding parameters. The results show that the welding speed is the key parameter determining the heat input of the weld. In the welds fabricated at slow welding speeds, the cooling rate is greater, resulting in accelerated solidification. The weld solidifies before hydrogen overflows from the weld pool, resulting in increased pore density and weakened mechanical properties. Therefore, welding parameters determine the heat input of the weld and subsequently the mechanical properties. It is shown that a special double-sided welding strategy can effectively control the heat input. Specifically, in contrast to those of the first, the welding parameters of the second side of the weld reduce the wire feeding speed when other parameters are held constant. Compared with the process strategy using identical double-sided parameters, this can slightly increase the heat input and reduce the defects in the weld, which can improve its mechanical properties. In the comparative experiment, the wire feeding speed was reduced from 5 to 3 mm·s−1, and the tensile strength of the weld was increased by 10%. |
| first_indexed | 2024-04-12T02:59:26Z |
| format | Article |
| id | doaj.art-5506d568c3d34adf8cc6c8f65768fe6e |
| institution | Directory Open Access Journal |
| issn | 2191-0324 |
| language | English |
| last_indexed | 2024-04-12T02:59:26Z |
| publishDate | 2022-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-5506d568c3d34adf8cc6c8f65768fe6e2022-12-22T03:50:42ZengDe GruyterHigh Temperature Materials and Processes2191-03242022-03-014119211010.1515/htmp-2021-0043Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wireXv Qihang0Tian Gan1Zhang Wei2Yang Zhengwei3Ming Anbo4Xi’an Research Institute of High-Tech, Xi’an 710025, ChinaXi’an Research Institute of High-Tech, Xi’an 710025, ChinaXi’an Research Institute of High-Tech, Xi’an 710025, ChinaXi’an Research Institute of High-Tech, Xi’an 710025, ChinaSchool of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710025, ChinaCompared with single-sided welding, double-sided welding can melt through thicker workpieces and improve the mechanical performance of the weld. In this work, laser welding with filler wire of 2195 Al–Li alloy plates is conducted via double-sided out-of-sync welding. By combining experiment and numerical simulation results, the influence laws of the weld’s mechanical properties are studied by considering the condition of both sides under different welding parameters. The results show that the welding speed is the key parameter determining the heat input of the weld. In the welds fabricated at slow welding speeds, the cooling rate is greater, resulting in accelerated solidification. The weld solidifies before hydrogen overflows from the weld pool, resulting in increased pore density and weakened mechanical properties. Therefore, welding parameters determine the heat input of the weld and subsequently the mechanical properties. It is shown that a special double-sided welding strategy can effectively control the heat input. Specifically, in contrast to those of the first, the welding parameters of the second side of the weld reduce the wire feeding speed when other parameters are held constant. Compared with the process strategy using identical double-sided parameters, this can slightly increase the heat input and reduce the defects in the weld, which can improve its mechanical properties. In the comparative experiment, the wire feeding speed was reduced from 5 to 3 mm·s−1, and the tensile strength of the weld was increased by 10%.https://doi.org/10.1515/htmp-2021-0043laser weldingdouble-sided weldingfeeding wireweld poolfiller wire |
| spellingShingle | Xv Qihang Tian Gan Zhang Wei Yang Zhengwei Ming Anbo Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire High Temperature Materials and Processes laser welding double-sided welding feeding wire weld pool filler wire |
| title | Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire |
| title_full | Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire |
| title_fullStr | Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire |
| title_full_unstemmed | Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire |
| title_short | Effect of the weld parameter strategy on mechanical properties of double-sided laser-welded 2195 Al–Li alloy joints with filler wire |
| title_sort | effect of the weld parameter strategy on mechanical properties of double sided laser welded 2195 al li alloy joints with filler wire |
| topic | laser welding double-sided welding feeding wire weld pool filler wire |
| url | https://doi.org/10.1515/htmp-2021-0043 |
| work_keys_str_mv | AT xvqihang effectoftheweldparameterstrategyonmechanicalpropertiesofdoublesidedlaserwelded2195allialloyjointswithfillerwire AT tiangan effectoftheweldparameterstrategyonmechanicalpropertiesofdoublesidedlaserwelded2195allialloyjointswithfillerwire AT zhangwei effectoftheweldparameterstrategyonmechanicalpropertiesofdoublesidedlaserwelded2195allialloyjointswithfillerwire AT yangzhengwei effectoftheweldparameterstrategyonmechanicalpropertiesofdoublesidedlaserwelded2195allialloyjointswithfillerwire AT minganbo effectoftheweldparameterstrategyonmechanicalpropertiesofdoublesidedlaserwelded2195allialloyjointswithfillerwire |