Effect of Metal Inert Gas Welding Process Parameters to Tensile Strength on ST 37 Steel Sheet Joint

Abstract

Welding technology still used in manufacturing industries, however welding process affected to decrease a joint performance. This study discussed about the welding parameters of Metal Inert Gas (MIG) which affected to tensile strength of weld joint. Welding process parameters used in this study such as welding current, welding time, and welding speed. The level of welding current was 80 A, 90 A, and 100A. Wire Speed was leveled with 55 inch/min, 60 inch/min, and 65 inch/min. The levels were 5 mm/sec, 6 mm/sec, and 7 mm/sec as welding speed. Tensile testing was used to measure strength of weld joint joined by each welding parameters combination. Welding current 100 A, wire speed 60 inch/min, welding speed 5 mm/sec could join ST 37 steel sheet up to 51.41 kg/mm2 of tensile strength. Welding current affected to increase tensile strength when values of welding current were increased between 80 A and 100 A....