Study of the Impact of the Synergic Line and the Strategy of Conception on Ti-6Al-4V Wire Arc Additive Manufacturing Process (WAAM-CMT)

In additive manufacturing, technologies based on the fusion of a metallic wire using an electric arc represent interesting alternative to current manufacturing processes, particularly for large metal parts, thanks higher deposition rates and lower process costs than powder or wire-laser technologies. A versatile 3D printing device DED-W Arc (Direct Energy Deposition by wire-arc) station melt filler is developed build titanium parts optimizing parameters control geometrical, metallurgical mechanical properties produced parts. this study, impact two different CMT synergic lines energetic geometric behavior Ti-6Al-4V single deposits highlighted. These are related first order parameters: feed speed (WFS) travel (TS). The results show difference energy, regime between these law with identical parameters. second part study focuses transition from walls blocks. By choosing best set make construction thin (composed stacked layers), then research optimal horizontal step (overlapping) thicker constructions, obtained made it possible validate (1D) thick (3D) without any weld pool collapse lack fusion.