Research Progress and Prospect of Wire and Arc Additive Manufacture

The wire and arc additive manufacture is widely used in aerospace and aeronautic, shipbuilding, automobile industry and other fields, due to the advantages of fast forming speed, high material utilization rate and low production cost. Firstly, the development status of the quality control for wire arc additive manufacture technology was introduced, including processing parameters, the temperature of the substrate and interlayer and shielding gas. Secondly, the development of the deposition paths was discussed by combining with the latest research at home and abroad, and the mechanics, fatigue, and corrosion properties of the formed parts were analyzed. Meanwhile, the typical applications of the wire arc additive ma-nufacture technology in the manufacture of large-scale and integrated parts were presented. Finally, the major challenges faced by the wire arc additive manufacture technology were summarized, such as the immature parameter dynamic monitoring technology, insufficient forming process optimization, inadequate standard formulation, and deficient fatigue and corrosion mechanism research. The suggestions were put forward for the future development trend of the wire arc additive manufacture technology, such as the establishment of the parameter control database, the development of the new materials, the establishment of the process database, and the perfection of the software and hardware system. © 2021, Materials Review Magazine. All right reserved.