【摘要】 搅拌摩擦焊(FSW)是最近十几年才发展起来的一项新的连接技术,焊接的材料非常广泛。在焊接时材料不熔化,减少和消除了因金属熔化带来的冶金反应的复杂性,因此特别适合焊接活性金属或两种物理和化学性质相差悬殊的材料。利用搅拌摩擦焊技术,已对高温活性金属、低熔点金属、复合材料、异种金属或合金等材料进行了焊接性能实验研究和工程应用研究,对核工业使用的铍-铝合金、铜合金核废物容器箱体也进行了焊接。利用摩擦搅拌技术还能细化金属材料的晶粒和增强硬度。更多还原

【Abstract】 Friction stir welding(FSW)is an new welding technology developed in recent decades,which is ap- plicable to welding a lot of materials.FSW can reduce and eliminate the complexity of metallurgy reaction which is brought by metal melting.FSW specially adapts to welding active metal and two kinds of materials which are entirely different in physics and chemistry properties.The welding research and engineering application have been done to high temperature active metal,low melting point metal,composite,dissimilar metal and alloy.FSW have welded Be-AI alloy and copper alloy box which are used to deposit nuclear waste.The friction stir technology can refine grain and enhance rigidity of metals.更多还原