Research Progress on Additive Manufacturing of Al-Zn-Mg-Cu System Aluminum Alloys

The Al-Zn-Mg-Cu system (7xxx series) aluminum alloys are a kind of ultra-high strength aluminum alloys most widely used in both military and civilian purposes.The additive manufacturing of Al-Zn-Mg-Cu system aluminum alloys has significant advantages in precision forming of complex parts and lightweight design, and it has a wide market demand.The research and development of additive manufacturing technology of Al-Zn-Mg-Cu system alloys were reviewed, and the current problems and improvement measures in additive manufacturing of 7075 aluminum alloy in China and foreign countries were summarized, and the future research hotspots and development directions of additive manufacturing technology of 7075 aluminum alloy were prospected.