ABSTRACT
Wire arc additive manufacturing (WAAM) fabricates large components with a high deposition rate and less material wastage; the operating and set-up cost of WAAM technology is lower than laser and electron beam technology. This study examined the mechanical properties of a WAAM-fabricated, multi-layer wall structure. First, wrought mild steel was used to perform tensile and hardness tests then tests were performed on the top, middle, and bottom zones of the WAAM-fabricated multi-layered wall. Results showed that tensile strength at the top zone has higher values than the middle and bottom zone. Similarly, hardness at the bottom zone has the highest value compared to other zones. The findings of this study showed that the mechanical properties of multi-layer wall structures constructed using WAAM might vary based on the precise zone of the component under consideration. However, the findings showed WAAM's promise as a productive and economical manufacturing technique for creating substantially intricate components with high strength and hardness.
