Wire-arc additive manufacturing: recent developments and potential

Date Issued
2023
Author(s)
Krstevska, Aleksandra
Abstract
Wire-arc additive manufacturing (WAAM) is a promising technology for producing
medium and large components without traditional subtracting technologies. It is a hybrid of two
manufacturing techniques: additive manufacturing and welding. The use of this technology has
grown significantly due to advantages such as material and energy savings while achieving high
deposition rates and low cost. However, there are some issues with microstructure homogeneity, and
properties are affected due to the complexity of the arc-induced thermal cycles and metallurgical
mechanisms, resulting in high residual stresses, distortion, porosity, cracks, and delamination. This
article summarises the progress made in the field of wire additive manufacturing, with a focus on
welding systems, tool path design software, material analysis, and control systems. It also highlights
some critical aspects that must be addressed to ensure high-quality production, such as control and
diagnosis mechanisms for defect monitoring, the effects of parameters and their optimisation
possibilities for improving quality, ensuring process stability, and possible post-deposition heat
treatments. The conclusions suggest further improvements to the wire-additive manufacturing
process in terms of accuracy, reliability, and efficacy, as well as future applications of the technology and research activities.
Subjects

Additive manufacturin...

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2V-KONFERENCIJA Elisaveta-Aleksandra-Marjan-Filip-Trajce.pdf

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International scientific and professional conference POLITEHNIKA Belgrade, pp.1010-1015, 2023
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182.29 MB

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