| Abstract Scope |
Electroslag Additive Manufacturing (ESAM) is a high-throughput manufacturing process that utilizes electroslag strip cladding (ESC) and, optionally, a gas-shielded welding process such as gas tungsten arc welding (GTAW). This combination enables the high deposition rate of ESC (more than 20 kg/h with a 60 mm strip) to benefit, where needed, from the precise geometric control of WAAM. In this work, the ESC process is independently investigated for additive applications by evaluating bead-stacking strategies and analyzing the resulting microstructural and mechanical properties. Subsequently, an axisymmetric geometry wherein GTAW was utilized to construct annular walls subsequently infilled via ESC is demonstrated. The GTAW-ESC interface is characterized for mechanical property continuity. Mechanical testing indicates that ESAM-produced Alloy 625 parts exhibit tensile properties on par with cast counterparts, supporting the process’s scalability to components exceeding one metric ton. The talk concludes with a discussion on emerging industrial applications of ESAM. |