Finite element simulation of tensile behavior of laser welded 5083 aluminum alloy joint with different filler wires

Chen，Ping1; Yao，Xiyu2; Zhou，Zhukun1; Guo，Xing1; Yang，Fan1; Long，Yu1; Yan，Ming2

2022-05-01

10.2351/7.0000636

JOURNAL OF LASER APPLICATIONS   影响因子和分区

1042-346X

1938-1387

5083 aluminum alloy (AA5083) is prone to produce pores and undercut defects during laser welding because of violent fluctuations and Mg alloy elements burning in a molten pool, which seriously affected the tensile properties of the welds. In this paper, the process of laser welding with filler wire was used to improve weld properties, and through experiments and finite element simulation (FES), the effects of welding wires (ER4047, 5356, and 5087) on joint properties and failure behavior were studied. The FES simulation results are very consistent with the digital image correlation (DIC) experiment measurements, which verifies the accuracy and reliability of the finite element model proposed in this work. With the FES, it was further found that the filler wire produced the weld reinforcement, which changed the stress and strain distribution around the weld. The location of the maximum strain of the weld is changed from the undercut of the no-filler wire weldment to the weld toe of the filler wire weldments. The stress concentration at the undercut of the weld is greatly reduced, and the load-carrying capacity of the filler wire welded joint is improved. Analysis shows that the high Mg content of ER5087 effectively suppressed the formation of porosity to obtain the highest tensile strength (285 MPa), reaching 85% of the base metal (BM) strength. The filling of the welding wire changed the fracture mode from ductile-brittle mixed fracture of no-filler wire to ductile fracture with filler wires.

AA5083 laser welding with filler wire finite element simulation digital image correlation

SCI ; EI

英语

通讯

Special Funds for Local Scientific and Technological Development guided by the Central Government[GKZY21195029] ; Innovation Project of Guangxi Graduate Education[JGY2021001]

Materials Science ; Optics ; Physics

Materials Science, Multidisciplinary ; Optics ; Physics, Applied

WOS:000792684100001

AIP Publishing

20221812054397

Aluminum alloys ; Ductile fracture ; Fillers ; Finite element method ; Magnesium alloys ; Tensile strength ; Welds ; Wire

Metal Forming:535.2 ; Welding:538.2 ; Welding Processes:538.2.1 ; Aluminum Alloys:541.2 ; Magnesium and Alloys:542.2 ; Alkaline Earth Metals:549.2 ; Laser Applications:744.9 ; Numerical Methods:921.6

ENGINEERING

2-s2.0-85129091828

Scopus

1.Institute of Laser Intelligent Manufacturing and Precision Processing,School of Mechanical Engineering,Guangxi University,Nanning,Guangxi,530004,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Chen，Ping,Yao，Xiyu,Zhou，Zhukun,et al. Finite element simulation of tensile behavior of laser welded 5083 aluminum alloy joint with different filler wires[J]. JOURNAL OF LASER APPLICATIONS,2022,34(2).

Chen，Ping.,Yao，Xiyu.,Zhou，Zhukun.,Guo，Xing.,Yang，Fan.,...&Yan，Ming.(2022).Finite element simulation of tensile behavior of laser welded 5083 aluminum alloy joint with different filler wires.JOURNAL OF LASER APPLICATIONS,34(2).

Chen，Ping,et al."Finite element simulation of tensile behavior of laser welded 5083 aluminum alloy joint with different filler wires".JOURNAL OF LASER APPLICATIONS 34.2(2022).