| 2002 №12 (09) | 2002 №12 (11) |
The Paton Welding Journal, 2002, #12, 46-47 pages
Combined method for plasma and arc welding using different-polarity current pulses (Hidra-process)
N.M. Voropaj, V.A. Mishenkov
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
The process of combined plasma and arc welding of aluminium alloys 10-30 mm thick was developed. The process provides for feeding pulses of current (reverse polarity) to the first and third tungsten electrodes as welding progresses, and, in the intervals between them, pulses of current (straight polarity) to the central plasmatron. Design of the device for realisation of the process and its technological capabilities are given.
Keywords: arc welding, plasma welding, aluminium alloys, combined method, metal penetration, weld shape, properties of welded joints
References
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3. Dilthey, V., Keller, II. (2001) Einsatz dor Hybridund Hidra-SchweiPverfahren zur Wirtschaftlichkeitssteigerung im Schiffbau. Vortrage der Gleichnamigen GroPen Schwei&technischen Tagung, Essen, Sept. 11−13, 2001. Dusseldorf: DVS.
4. Czuyack, A. (2001) Stand und Entwicklungstcndcnzen bei der Ilcrstellung Langsnahthgcschwcister Qualitat − Edel- stahlrohre. Ibid.
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