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9 December 2021 Numerical simulation analysis of stress and strain of titanium alloy thick plate ultra-narrow gap welded joint by laser welding with filler wire
Naiwen Fang, Dianxin Xu, Ruisheng Huang, Jian Qin, Ruiyan Jia, Hao Cao, Pengbo Wu
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Proceedings Volume 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021); 1203023 (2021) https://doi.org/10.1117/12.2617338
Event: Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 2021, Hefei, China
Abstract
To study the residual stress and deformation distribution of titanium alloy thick plate ultra-narrow gap welded joint by laser welding with filler wire, the ANSYS simulation software was used for the numerical simulation analysis of stress and strain of 40mm TC4 titanium alloy plate laser welded joints. The simulation result was verified with a blind-hole stress tester and 3D laser coordinate measuring device. The results show that the numerical simulation data is highly consistent with the test results. The stress distribution of single U-groove and double U-groove welded joints are different. Relatively obvious stress concentration appeared mainly on one side of the end weld of the single U-groove welded joint, while the stress distribution of double U-groove welded joint are symmetrical along the wall thickness direction. There is not much difference in longitudinal stress and transverse stress between the two kinds of grooves. The transverse contraction and angular deformation of double U-groove welded joint are smaller than that of the single U-groove, and the distribution zone of transverse residual stress on the upper surface of the single U-groove welded joint is obviously wider.
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Naiwen Fang, Dianxin Xu, Ruisheng Huang, Jian Qin, Ruiyan Jia, Hao Cao, and Pengbo Wu "Numerical simulation analysis of stress and strain of titanium alloy thick plate ultra-narrow gap welded joint by laser welding with filler wire", Proc. SPIE 12030, Third International Conference on Optoelectronic Science and Materials (ICOSM 2021), 1203023 (9 December 2021); https://doi.org/10.1117/12.2617338
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KEYWORDS
Titanium
Laser welding
Numerical simulations
Metals
Optical simulations
Measurement devices
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