The effect of gas tungsten arc welding (GTAW) process parameters and its impact on the titanium TWB was studied experimentally as well as using numerical simulation. Bead characteristics of BoP trials (bead on plate) were analyzed based on Taguchi L₂₇ orthogonal array by taking welding current (115 A, 125 A, 135 A), welding speed (4.1 mm/s, 5.8 mm/s, 7.5 mm/s) and arc length (3 mm, 4 mm, 5 mm) as process parameters. The bead width and depth of penetration for all trials were measured by using the weld expert system. Based on the bead characteristics, optimized GTAW process parameters (135 A, 4.1 mm/s and 3 mm) were identified for making the TWB by joining 2–1.6-mm-thick Ti–6Al–4V sheets. The tensile test of the prepared Ti–6Al–4V TWB was conducted in the universal testing machine. The COMSOL and ABAQUS software packages were used for the numerical simulation of TWB to assess the bead profile and tensile properties. The prediction made from the temperature distribution curve related to phase change near weld zone, exactly matched with the experimental work. The joint strength of TWB observed to be around 982 MPa and 1005 MPa was evaluated experimentally and conducting ABAQUS simulation work. The tensile test results were comparable with each other within the acceptable error level.

实验研究了钨极氩弧焊（GTAW）工艺参数的影响及其对钛TWB的影响，并使用数值模拟进行了研究。根据田口L ₂₇分析BoP试验的珠子特征（板上的珠子）通过以焊接电流（115 A，125 A，135 A），焊接速度（4.1 mm / s，5.8 mm / s，7.5 mm / s）和电弧长度（3 mm，4 mm，5 mm）作为正交阵列参数。所有试验的焊道宽度和熔深都使用焊接专家系统进行了测量。根据焊珠的特性，确定了优化的GTAW工艺参数（135 A，4.1 mm / s和3 mm），用于通过连接2–1.6 mm厚的Ti–6Al–4V薄板来制造TWB。制备的Ti-6Al-4V TWB的拉伸试验在通用试验机中进行。COMSOL和ABAQUS软件包用于TWB的数值模拟，以评估胎圈轮廓和拉伸性能。根据与焊接区附近相变有关的温度分布曲线所作的预测与实验工作完全吻合。实验评估了TWB的接头强度，分别约为982 MPa和1005 MPa，并进行了ABAQUS模拟工作。在可接受的误差水平内，拉伸试验结果彼此相当。