Ultrasonic and Mechanic Inspection of Welding Beads of Pipes Joined by MAG Welding at Different Positions
Ilhan Candan, Ahmet Durgutlu, B Gülenç, Nizamettin Kahraman
article (Uluslararası, Hakemli) | Yazar(lar): Ilhan Candan, Ahmet Durgutlu, B Gülenç, Nizamettin Kahraman | Yıl: 2006 — Özet: In this study, spiral welded steel pipes made of X52 (API 5L) material were butt joined at different positions using full automatic gas metal arc welding (MAG). In order to examine the influence
In this study, spiral welded steel pipes made of X52 (API 5L) material were butt joined at different positions using full automatic gas metal arc welding (MAG). In order to examine the influence of the torch position on the weldment, the specimens were subjected to bending, hardness and nick-break tests. In addition ultrasonic inspections were also carried out on the welded specimens. The results obtained from nick-break and bending tests indicated that samples welded in the position of flat and vertical-travel up showed good results. The highest hardness values were obtained from HAZ and this is followed by weld metal and the base metal. Ultrasonic inspection revealed that only flat and vertical-travel up position led to robust weld beads.