Study of parameters for weaving TIG-underwater welding

Ozden H., GÜRSEL K. T., Dorn L.

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, cilt.36, sa.1, ss.23-27, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1002/mawe.200400846
  • Dergi Adı: MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.23-27
  • Anahtar Kelimeler: weaving bead technology, TIG (GTA)-welding, welding parameters
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

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.