Ti-6Al-4V钛合金具有密度低、高温下组织稳定、强度高的特点，被广泛应用于机翼翼梁、起落架支撑肋等航空工业关键零部件的制造。电弧熔丝增材技术研究始于20世纪80年代，该技术具有成型效率高、原材料利用率高、设备简单等优势。目前，学界对Ti-6Al-4V合金电弧熔丝增材技术开展了广泛研究并已取得一定成果。本文综述了电弧熔丝增材制造技术的发展历史及研究热点，并整合了国内外Ti-6Al-4V合金电弧熔丝增材技术的最新研究及应用情况，对电弧熔丝增材制造Ti-6Al-4V合金的组织性能特性及调控工艺进行了总结与展望。

Ti-6Al-4V titanium alloy has the characteristics of low density, stable structure and high strength at high temperature. It is widely used in the manufacturing of key parts of aviation industry such as wing beam, landing gear support rib and so on. The research of arc fuse additive technology began in 1980s, which has the advantages of high forming efficiency, high utilization rate of raw materials and simple equipment. At present, the technology of Ti-6Al-4V alloy arc fuse additive has been widely studied and some achievements have been achieved. This paper summarizes the research and application of Ti-6Al-4V alloy arc fuse additive technology at home and abroad, and analyzes the microstructure, mechanical properties and control technology of the titanium alloy after processing. Finally, in view of the current bottleneck of the process, the research direction is prospected.

国家重点研发计划项目课题(2018YFB1106502)；国家自然科学基金面上项目(51775068)；重庆市技术创新与应用示范专项产业类重点研发项目(cstc2018jszx-cyzdX0121),国家工业强基工程(TC180A3Y1/18),重庆市技术创新与应用发展(重点项目(目标导向类))(cstc2019jscx-mbdx0080)