Characteristics of austenitic stainless steel T-joints welded using the DMAG process with solid wire

MERT T., Gültekin N., KARAASLAN A.

MATERIALS TESTING, cilt.58, sa.9, ss.778-781, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 9
  • Basım Tarihi: 2016
  • Doi Numarası: 10.3139/120.110915
  • Dergi Adı: MATERIALS TESTING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.778-781
  • Anahtar Kelimeler: Double channel torch, stainless steel, solid wire, hardness, bead geometry
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

X 2 CrNi 18 9 austenitic stainless steel material with web and flange thickness of 6 mm was welded by conventional GMAW and double channel shielding gas method ( DMAG) to form double fillet T-joints. The differences between these two methods were characterized by measurements of mean welding parameters, thermal camera temperature measurements, Vickers hardness profiles and bead geometries of the joints. Results show higher mean current but lower mean voltage using double channel shielding gas method. Vickers hardness differences between the two methods were insignificant. Moreover, molten mean filler metal area was larger with double channel shielding gas method, which depicted that welding speed for the same filler metal deposition could be increased and this could yield increased productivity.