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15 Pages

Optimization of Laser Beam Oscillation Amplitude for Residual Stress Mitigation in TC4/TA18 Bottom-Locking Tube Joints

Jian Xu,
Chaohua Zhang,
Denggao Liu,
Xianfeng Xiao,
Jingyi Xue,
Xiaojun Ye and
Yanshu Fu

Metals2026, 16(8), 826;https://doi.org/10.3390/met16080826

26 July 2026

Laser beam oscillation has been recognized as an effective means to modify temperature gradients and relieve stress concentration in welded joints, yet its role in dissimilar titanium alloy bottom-locking configurations—where asymmetric thermo-...

(This article belongs to the Special Issue Properties and Residual Stresses of Welded Alloys)

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839 Views

17 Pages

Effect of Laser Power on Residual Stress in Bottom-Locking Welded Joints Between TC4 and TA18 Titanium Alloys: Numerical Modeling and Experiments

Ming Cao,
Denggao Liu,
Xiangyu Zhou,
Wenqin Wang,
Yanjun Wang,
Chaohua Zhang and
Xianfeng Xiao

Metals2026, 16(1), 48;https://doi.org/10.3390/met16010048

30 December 2025

In aerospace manufacturing, laser welding of TC4/TA18 dissimilar titanium alloys in bottom-locking configurations is essential for lightweight design, yet the residual stress behavior of such joints remains insufficiently understood. This study syste...

(This article belongs to the Special Issue Properties and Residual Stresses of Welded Alloys)

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