Metoga GTAW Welding Joint Strength Study For Aisi 1045 Application Of Milling Tools

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 series electrodes.To check results variation, perform tensile testing ASTM A-370 testing, hardness Vickers E-92 microstructure inspection, grain size calculations control test. focus inspection three influential areas, namely, areas weld metal, HAZ (heat-affected zone), base metal.The study show that 70 A amperage, test all samples breaking area. While 90A broke two area, 110A one sample For at amperes, ratio area to shows difference not too large compared used, so can be recommended. examination were dominated pearliet martensite little bainite, harder metal. Likewise, Heyn regions higher make sizes appear denser smaller.