|
|
|
| Ultrasonic Double-Pulsed Deep Penetration VPTIG Welding for Aluminum Alloys |
| CONG Baoqiang1,2, WANG Yipeng1,2, QI Bojin1,2, ZHONG Hao1,2, HU Xin3 |
(1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China;
2. MIIT Key Laboratory of Aeronautics Intelligent Manufacturing, Beijing 100191, China;
3. Sichuan Future Aerospace Industry LLC, Shifang 618400, China） |
|
|
|
|
Abstract Variable polarity tungsten inert gas arc welding (VPTIG) is widely used in the welding of aluminum and aluminum alloys, due to its low cost and high weld quality. In order to enhance the arc energy density and its penetration ability, a novel ultrasonic double-pulsed deep penetration VPTIG (DP-VPTIG) process was proposed in this paper. Al-Cu and Al-Mg series aluminum alloy plates were employed as base materials. The preliminary experimental results show that the stable process and good welding quality can be obtained when DP-VPTIG is employed to weld aluminum alloy plates, and also the precise control of weld penetration can be achieved by adjusting the pulsed current characteristic parameters. It is very significant and valuable to carry out the applicability and related theoretical study for the novel DP-VPTIG process, which can be employed in the welding fabrication of aluminum alloy plates and show a good application prospect.
|
|
|
|
|
|
|
|
|
2018, 
