Wire arc additive manufacturing enables utilizing nearly any metallic alloy for the additive production of the geometrically complex parts and components of large scales. As an increasing number of materials are being used for WAAM, it is fundamental to conduct systematic research on the properties of various metals and alloys. This article presents a study of the influence of process parameters on the quality of the wire arc additively manufactured Sv-08G2S steel. During the experiments, the optimal process parameters were selected for the deposition of even and defect-free beads. The correlation between the process parameters and the bead geometry was determined. Adjustments of the parameters were made during the deposition of the walls consisting of a different number of layers. Once adjustments had been completed, more geometrically complex samples were manufactured. After deposition, the common defects and their possible causes were identified, and recommendations for their elimination were given. The obtained values of the ultimate tensile strength and yield strength of additively deposited steel are within the range and even exceed the characteristics of wrought low-carbon steels. Therefore, the conducted research has demonstrated that the wire arc additively manufactured Sv-08G2S steel provides the necessary quality and mechanical properties required for structural steels.
Wire arc additive manufacturing enables utilizing nearly any metallic alloy for the additive production of the geometrically complex parts and components of large scales. As an increasing number of materials are being used for WAAM, it is fundamental to conduct systematic research on the properties of various metals and alloys. This article presents a study of the influence of process parameters on the quality of the wire arc additively manufactured Sv-08G2S steel. During the experiments, the optimal process parameters were selected for the deposition of even and defect-free beads. The correlation between the process parameters and the bead geometry was determined. Adjustments of the parameters were made during the deposition of the walls consisting of a different number of layers. Once adjustments had been completed, more geometrically complex samples were manufactured. After deposition, the common defects and their possible causes were identified, and recommendations for their elimination were given. The obtained values of the ultimate tensile strength and yield strength of additively deposited steel are within the range and even exceed the characteristics of wrought low-carbon steels. Therefore, the conducted research has demonstrated that the wire arc additively manufactured Sv-08G2S steel provides the necessary quality and mechanical properties required for structural steels.