The welding process is a permanent connection for metal materials using heat energy. GTAW (Gas Tungsten Arc Welding) method carried out on AISI 1045 steel material with solid round shape, which has the characteristics and properties of slightly above low carbon steel. was based AWS A5.18 standard specifications, in this study. by varying amperage between 70, 90, 110 amperes as well ER70S-G seri...
