搅拌摩擦焊接技术（Friction Stir Welding）自上世纪90年代发明以来，迅速在航空、航天、船舶、轨道交通等领域得到了广泛关注和应用，成为21世纪影响最为深远的焊接技术之一。近年来，以搅拌摩擦加工/增材制造（Friction Stir Processing/Additive Manufacturing）为代表的一系列固相加工技术进一步丰富了搅拌摩擦的技术内涵。本文主要介绍了搅拌摩擦焊接和加工技术的研究进展，结合近年国内取得的技术突破和装备发展现状，探讨了理论和工程应用面临的技术挑战及其未来的发展方向。
Friction stir welding（FSW） has been made one of the most impactful welding technologies in the 21st century with its application in fields such as aerospace, shipbuilding, rail transportation etc. Meanwhile, a series of solid state processing technologies, represented by friction stir processing（FSP） and friction stir additive manufacturing（FSAM）, have further enriched the technical scope of friction stir technologies. These technologies surge with the demand for lightweight joining, solid-state surface processing, and sophisticated large-scale structure building. This article primarily introduces the domestical research progress of friction-stir-based technologies. The major technical challenges, recent breakthroughs, as well as the key future development directions in China are explored.
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