The Effect of Shielding Gas Mixture on Tensile Strength of MIG/MAG Welded Construction Steel (St52-3)

Şık A.

Trakya University Journal of Natural Sciences, cilt.7, sa.1, ss.9-15, 2006 (Hakemli Üniversite Dergisi)

  • Cilt numarası: 7 Konu: 1
  • Basım Tarihi: 2006
  • Dergi Adı: Trakya University Journal of Natural Sciences
  • Sayfa Sayıları: ss.9-15


In this study, St52-3 construction steel has been welded with MIG/MAG welding method that has a wide range of application in industry. The mixture of the shielded gasses in MIG/MAG welding process is very important for the quality of the weld. In the study, three different mixture of gases were used. These mixture of these gas were 80Ar+18CO2+2O2, 88Ar+10CO2+2O2 and 93Ar+5CO2+2O2. After welding procedure the effect of the mixture on the tensile strength was investigated. The results of the tests showed that the mixture of 88Ar+ 10CO2+2O2 shielding gas gives highest tensile strength while93Ar+5CO2+2O2 shielding gas mixture results in lowest tensile strength.