Studi Sifat Mekanis dan Mikrostruktur Pengelasan SMAW dengan Pengaruh Variasi Kuat Arus 80A, 110A, dan 130A pada Material Baja A-36

Abstract

Protective metal arc welding (SMAW) is a welding technique that uses flux and a gas arc to protect metal from oxidizing gases, so it requires careful consideration of the strength of the electric current. In this research the author used A36 low carbon steel material for the bicycle frame because it has strong strength and is also associated with the quality of the steel which can be modified in shape. has an affordable price on the market. This research was carried out with the aim of analyzing welding results at variations in current strength of 80A, 110A, and 130A in A36 steel welded joints using the SMAW welding method. SMAW welding, hardness values at variations in current strength of 80A, 110A, and 130A in A36 steel welded joints using the SMAW welding method, impact values at variations in current strength of 80A, 110A, and 130A in A36 steel welded joints using the SMAW welding method, microstructure in variations in current strength of 80A, 110A, and 130A in A36 steel welded joints using the SMAW welding method. After testing, it was found that variations in the strength of the welding current affected the visual results of the welding. Variations in the strength of the welding current also affected the tensile strength value, hardness value, impact value and microstructure.