A Review on Effect of Welding Current, Voltage and Weld Speed on Weld Quality during Shielded Metal Arc Welding of Mild Steel Pipe

Abstract

The present case study is concerned with the ultimate strength of welded joint and effect of shielded metal arc welding current, voltage and welding speed on ultimate strength during shielded metal arc welding of mild steel pipe joints. A Mild steel pipe of .006 m thickness and .150 m diameter were used for welding, the base material for preparing root & final pass butt welded joints is by E 6013. Speed of welding is provided by skilled welder in 6G position. Ultimate Tensile strength of the joint is welded by E6013 electrodes as filler metals and the results were noted. Number of results was obtained during the welder qualification test in a power plant. About 100 experimental results were investigated. From this result different relations were  obtain, which shows how ultimate tensile strength depend on welding current, voltage and welding speed.