搅拌摩擦辅助电弧增材制造铝合金研究进展-中国材料进展

文章信息/Info

Title:: Recent Progress in Wire Arc Additive Manufactured Aluminum Alloys Assisted by Friction Stir Processing

作者:: 蔺春发; 戴宇轩; 韩雨蔷; 李响; 常宝平; 李远喜; 1. 常熟理工学院汽车工程学院，江苏常熟 215500 2. 西北有色金属研究院先进材料研究所，陕西西安 710016

Author(s):: LIN Chunfa; DAI Yuxuan; HAN Yuqiang; LI Xiang; CHANG Baoping; LI Yuanxi; 1.School of Automotive Engineering，Changshu Institute of Technology，Changshu 215500，China 2.Advanced Materials Research Central，Northwest Institute for Non-ferrous Metal Research，Xi’an 710016, China

Keywords:: aluminum alloy; wire arc additive manufacturing; friction stir processing; grain refinement; porosity defect; residual stress

摘要:: 高性能铝合金兼具轻质、高强、耐腐蚀等优点，在航空航天和汽车制造等工业领域应用前景广阔。电弧增材制造技术集成形效率高、原材料和设备成本低、环境适应性强等优点于一身，在大尺寸铝合金构件制备方面具有显著优势。但复杂热循环导致的晶粒粗大、组织不均匀、残余应力和气孔缺陷等问题，给电弧增材制造铝合金带来了挑战。搅拌摩擦加工技术具有良好的组织细化、均匀化和致密化效果，已作为同步调控或后处理手段用于铝合金的增材制造中。针对近年来搅拌摩擦辅助电弧增材制造铝合金的装备系统、工艺参数、组织结构和力学性能等方面进行了综述，并分析了搅拌摩擦辅助电弧增材制造技术的形性调控机理，最后对复合增材制造技术的发展趋势进行了展望。

Abstract:: High performance aluminum alloys have broad application prospects in aerospace and automotive fields due to its lightweight, high strength and outstanding corrosion resistance. Wire arc additive manufacturing (WAAM) technology, combining the advantages of high forming efficiency, low cost and excellent environmental adaptability, exhibits great potential in producing aluminum alloy components. However, coarse grains, nonuniform microstructure, residual tensile stress, and porosity defects are always formed in aluminum alloy components owing to the complex thermal cycles, which brings challenges for the WAAM of aluminum alloys. Recently, friction stir processing (FSP) has been used in the additive manufacturing of aluminum alloys to optimize its microstructure. In this review, the latest developments of WAAM aluminum alloys assisted by FSP are reviewed, including the equipment system, process parameters, microstructure, mechanical properties as well as the microstructureperformance controlling mechanisms. Finally, the possible development directions of the above metal additive manufacturing technologies are prospected.