金属加工（热加工）Issue(7)：1-13,13.
7×××系铝合金电弧增材制造研究进展
Research progress in wire-arc additive manufacturing of 7××× aluminum alloys
摘要
Abstract
High-strength 7××× aluminum alloys are widely used in aerospace,automotive and other fields due to their excellent mechanical properties.Traditional manufacturing technologies have been difficult to meet the demand for high efficiency and low cost manufacturing of large size and complex 7××× aluminum alloys parts.As an emerging metal additive manufacturing technology,Wire-Arc Additive Manufacturing(WAAM)provides a new idea for the preparation of large size complex 7××× aluminum alloys components for aerospace.However,the 7××× aluminum alloys components fabricated by WAAM still suffer from microstructure inhomogeneous,numerous pores,and anisotropic mechanical properties,which limit their wide applications.Firstly,the paper describes the principles and characteristics of different WAAM processes,and discusses the formation mechanisms and control strategies of defects such as microcracks and porosity.The evolution of the micro structure of the deposited alloys and its relationship with the mechanical properties are discussed,and the corresponding control methods are proposed.In addition,the effects of post treatment processes such as heat treatment and Laser Shock Peening on the microstructure and mechanical properties are also discussed.Finally,the future development trend and research direction of high strength 7××× aluminum alloys parts fabricated by WAAM are prospected.关键词
7×××系铝合金/电弧增材制造/气孔缺陷/航空航天Key words
7××× aluminum alloys/wire-arc additive manufacturing/poredefects/aerospace engineering引用本文复制引用
乔柳平,陈瑞凯,杨健楠,方学伟,王玉华,杜勇刚,邹楠..7×××系铝合金电弧增材制造研究进展[J].金属加工（热加工）,2025,(7):1-13,13.基金项目
国家自然科学基金(52201105) （52201105）
再制造技术全国重点实验室基金资助项目(61420052023WD017). （61420052023WD017）
