Underwater plasma-MIG arc welding: Shielding technique and pressure reduction by a centrifugal pump
- Inst. fuer Verfahrenstechnik, Hannover (Germany)
- Inst. fuer Schweisstechnik und Trennende Fertigungsverfahren, Clausthal-Zellerfeld (Germany)
In comparison to hyperbaric underwater welding in diving chambers, wet welding techniques promise higher flexibility and lower costs. One technique for creating a local dry and pressure reduced welding zone is the use of a centrifugal pump. Results of experimental investigations in combination with a plasma-MIG arc welding system are presented in this paper. Special importance is attached to the local pressure reduction in view of the fact that low pressure, i.e. a high pressure difference between surrounding water and dry welding area, is a good condition for welding but is difficult to be obtained with other shielding systems than pressure chambers. Plasma-MIG welding has been done under water with a good result on the weld quality. Values of the hardness of the joint and the appearance of the weld structure are nearly comparable to atmospheric welds.
- OSTI ID:
- 264137
- Report Number(s):
- CONF-950604-; ISBN 1-880653-20-6; TRN: IM9633%%71
- Resource Relation:
- Conference: 5. international conference on offshore and polar engineering, The Hague (Netherlands), 11-15 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the fifth (1995) international offshore and polar engineering conference. Volume 4; Dos Santos, J.F. [ed.] [GKSS Forschungszentrum Geesthacht (Germany)]; Langen, I. [ed.] [Hogskole i Stavanger (Norway)]; Ellinas, C.P. [ed.] [Advanced Mechanics and Engineering, Croydon (United Kingdom)]; Ueda, Yukio [ed.] [Osaka Univ. (Japan). Welding Research Inst.]; PB: 574 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Underwater welding using the plasma MIG method
An investigation into underwater wet welding using the flux cored arc welding process