عنوان مقاله [English]
To consider the importance of avoiding corrosion of weld metal under various environmental conditions, the investigation into the efficiency of different welding methods with different types of electrodes will be inevitable. In this paper, the strength and compatibility of various welding methods were experimentally investigated considering four welding types, including arc welding with phosphor bronze electrode, arc welding with steel electrode, oxy-acetylene welding with bronze electrode, and oxy-acetylene welding with brass electrode. In this regard, first, the material properties of the base metal were determined by tensile testing and then, the behaviors of 46 test samples were examined under three loading conditions of tensile, shear, and bending. Investigation of the experimental results showed that with an acceptable approximation, the strength of arc welding with steel electrode could be considered the same at all thicknesses and the effect of thickness on the tensile strength of the weld could be ignored. while the plate thickness has a remarkable effect on the quality of the oxy-acetylene welding. Also, the results of experiments showed that arc welding with steel electrodes in different types of samples had higher strength than other three types of welding. Then, the strength of arc welding with phosphor bronze electrode was in the second grade.