Residual stress formation and control in wire arc additive manufacturing: Mechanisms, characterization, and mitigation strategies

Wire arc additive manufacturing of Fe-Ni alloy: process parameters, post processing, and magnetic Barkhausen noise as a non-destructive evaluation approach

Influence of Component Geometry and Process Parameters on Mechanical Performance of Wire‐Arc Additive Manufactured Carbon Steel Tubes

Wire Arc Additive Manufacturing (WAAM) of carbon steels has gained significant attention due to its high deposition rates and cost efficiency compared with conventional fabrication methods, particularly casting. Nevertheless, challenges persist in achieving consistent weld bead geometry, mechanical reliability, and pro...

The process study and parameter influence in Wire Arc Additive Manufacturing (WAAM) of titanium using hot-wire plasma arc welding

This research aims to study and develop the Wire Arc Additive Manufacturing (WAAM) process for titanium alloys utilizing the Hot-Wire Plasma Arc Welding (Hot-Wire PAW) technique. Due to titanium’s high susceptibility to oxidation during melting, a specialized inert gas shielding device was designed. Process optimizatio...

Investigation of slag formation and transport in high strength low alloy steel during wire arc additive manufacturing

High Strength Low Alloy (HSLA) steel components are increasingly produced using Wire Arc Additive Manufacturing (WAAM) because of its ability to produce complex geometries and achieve high deposition rates. However, preventing the formation of surface oxides, known as silicon islands or slag, remains a persistent c...

Methodology Development for Residual Stress Characterization Over Different Length Scales of Laser Metal Deposition using Ti-6Al-4V Powder

Circularity and sustainable manufacturing are increasingly important in aerospace manufacturing industry, where extending component lifespan through repair is a key strategy. Laser-based directed energy deposition using powder feedstock (DED-LB/p) is a promising technique for repairing high-value components such as b...

Effect of Micro-Structure and Mechanical Properties on 309L Austenitic Stainless Steel Deposition by Cold Metal Transfer Wire-Arc Additive Manufacturing

Wire-arc additive manufacturing based on cold metal transfer (CMT-WAAM) is a high-precision forming technology suitable for thin-wall stainless steel parts, yet the unclear correlations between linear energy density, forming stability, microstructure evolution and mechanical anisotropy restrict the precision forming an...