News & Announcements (Page 48)

The primary process today for robotic arc directed energy deposition (DED), used for large-scale additive manufacturing builds, is gas metal arc welding. However, two other processes, plasma-arc (PA) and gas tungsten arc (GTA) welding, have been recently studied at EWI and shown to offer greater control over power and material inputs during a build. EWI...

EWI uses integrated computational materials engineering (ICME) methods to analyze correlations between processing conditions, thermal response, microstructures, and mechanical properties to predict performance in joining and additive manufacturing. The resulting information is used to create unique tools for modeling and simulation with the potential to deliver huge time and cost savings to manufacturers. EWI Senior...

With advancements in additive manufacturing, interest has grown in functionally graded materials (FGMs) as the gradual variations in their composition can provide locally tailored properties. However, they are plagued by a familiar challenge in the world of multi-material solutions – effective joining. The broad range of composition in FGMs can lead to several problems, most...