Deposition of Low Thermal Expansion Invar Alloys Using Wire Arc Additive Manufacturing

Wire Arc Additive Manufacturing (WAAM) uses an arc welding process and consumable filler wire to deposit near net shaped 3d structures in a layer by layer manner. The highly flexible nature of the process enables the production of components with materials that are otherwise challenging to process using subtractive manufacturing methods. Invar...

Characterisation of a functionally graded duplex stainless steel: fabricated by Gas Tungsten Arc Welding

Functionally graded materials (FGM) are a class of materials in which the chemical composition or microstructure varies as a function of position, offering unique material properties. In this study, a functionally graded structure was manufactured using Gas Tungsten Arc Welding and a double wire feed device. The wire feed rate was changed step...