Study of parameters for weaving TIG-underwater welding
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, vol.36, no.1, pp.23-27, 2005 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 36 Issue: 1
- Publication Date: 2005
- Doi Number: 10.1002/mawe.200400846
- Journal Name: MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.23-27
- Keywords: weaving bead technology, TIG (GTA)-welding, welding parameters
- Dokuz Eylül University Affiliated: No
Abstract
For underwater welding of final and filler passes with V-grooves weaving technology is advantageous for bridging the gap. In this way the weld volumina and energy can be controlled much more effective as compared with stringer bead technology Therefore a dropping through of the weld pool and an excessive reinforcement of the weld can be avoided. Furthermore a wetting of the weld edges and a degassing of the weld pool can be improved so that micro-porosity can be avoided. Heating up and cooling by the oscillating are contributes to refine the weld structure. In the present study the properties of weaving TIG-welded joints for Onshore and Offshore applications will be investigated. For this purpose the influencing parameters during weaving TIG-welding (width, height, frequency, speed and hold time. triangular, rectangular and trapeze shape of the weaving) will be analysed.