Influence of Position of Double Tungsten Electrode and Welding Gun Posture on Weld bead Forming
This paper analyzes the influence of three different spatial positions of the tungsten needle of double tungsten electrode welding gun on the weld bead quality,and takes overlay welding as example to determine the optimal solution for inclined double tungsten electrode welding gun by carrying out welding experiments including adjusting the inclination angle of the double tungsten electrode welding gun and distance between the tungsten needle tips.On basis of the principle of arc stiffness,the area with the highest arc temperature is directly applied to the weld root to solve the problem of lack of fusion.The results show that satisfactory weld bead can be formed by applying the welding gun inclination angle of 20～30° and tungsten electrode distance of 1～3 mm.
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维普
