Research Status of Shape Control and Performance Control Technology of Wire Arc Additive Manufactured Aluminum Alloy

Wire arc additive manufacturing (WAAM) aluminum alloy has the advantages of fast deposition speed, low equipment cost and high material utilization rate, which has received great attention from industrial and academic circles.However, the inherent melting and solidification characteristics of arc additive manufacturing determine the problems of shape control and performance control of the materials.The developments in China and foreign countries were analyzed from the two aspects of“shape control“and“performance control“.The process parameters optimization, online processing methods such as substrate preheating, cold rolling, on-line monitoring, micro casting forging, friction stir welding and the post-processing methods were elaborated, the present situation and tendency of different technologies were discussed, and the development direction of shape control and performance control in arc additive manufacturing of aluminum alloy was put forward.