Performance analysis on VPTIG repair welding joint of 2219 aluminum alloy

When the welded joint of 2219 aluminum alloy has defects, the high-frequency VPTIG is used for welding repair. The mechanism of control is proposed for the repair welding joint, and the process route for satisfying the repair welding joint of 2219-T87 aluminum alloy is formulated to reduce the influ...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-07, Vol.2808 (1), p.12003
Main Authors: Li, Xian, Song, Yonglun, Lu, Zhenyang
Format: Article
Language:English
Subjects:
Aluminum base alloys
Crystal defects
Repair welding
Welded joints
Welding
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Summary:When the welded joint of 2219 aluminum alloy has defects, the high-frequency VPTIG is used for welding repair. The mechanism of control is proposed for the repair welding joint, and the process route for satisfying the repair welding joint of 2219-T87 aluminum alloy is formulated to reduce the influence of overall performance on the joint local repair welding position. The research results show that the DC-EN of VPTIG coupled to pulse current at a frequency of 20-25 KHZ is helpful to restrain the metallurgical defects such as pores and refine the grain of the fusion zone, to ensure the comprehensive performance of the repair welding joint.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2808/1/012003