Statistical modelling of narrow-gap GTA welding with magnetic arc oscillation

✍ Scribed by Cicero M.D. Starling; Paulo V. Marques; Paulo J. Modenesi

• Book ID: 103957617
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 558 KB
• Volume: 51
• Category: Article
• ISSN: 0924-0136
• DOI: 10.1016/0924-0136(94)01356-6

✦ Synopsis

Statistical experimental design and linear-regression modelling were used to study the effect of the welding parameters on the bead shape in a narrow gap-GTAW process with magnetic arc oscillation. It was shown that, for the conditions studied, arc oscillation has little influence on the lateral fusion of the joint, although it favourably influences the shape of the bead. The undercutting level tended to increase rapidly when the gap width was reduced. Optimized welding conditions are presented, based on models calculated from the experimental data.