Wire arc additive manufacturing (WAAM) has confirmed its flexibility in
meeting the mid- to large-scale component production requirements for the engineering
and related sectors. Because of mechanical limitations such as under-matched
mechanical properties, the existence of significant residual stresses and the necessary
post-deposition activity of the formed component, WAAM currently cannot be used as
a fully-fledged manufacturing process. The entire article offers an overview of the
WAAM technology including one with a succinct description of the WAAM field
history, situation, benefits and challenges. Emphasis has been given, particularly on the
measures to limit porosity, tensile strength, microstructural inspections and other
important advances in the field of WAAM. The main advantages of WAAM are the
integration of the manufacturing process, the fair degree of design flexibility, as well as
the resulting optimization ability. Owing to feasibility of large-scale composite
materials of significantly higher deposition rates, considerable progress has been made
in the setting of the WAAM process. An acceptable efficient heat treatment has been
integrated to help reduce defects within the WAAM process and also to obtain the new
options that are effective. The integration of materials and the production methods for
manufacturing of defect-free and technically feasible deposited parts remains a vital
step in the future.
Keywords: Arc stability, Compression, Corrosion, Deposition rate, ECT,
GMAW-AM, GTAW-AM, Grain size, Hybrid AM, Impedance, Inter layer,
PAW-AM, PDP, Porosity, Post deposition heating, SEM, Tensile, Tomography,
WAAM, XRD.
