介绍了磨料水喷射切割技术的原理、特点、发展历史和应用现状 ,并阐述了磨料水喷射切割机的构成和应用。由于磨料水喷射切割刀具不直接和材料接触 ,因而不会因为加工使材料发热并产生应力 ,也不会使金属变硬或出现铸态组织。因此 ,该技术能切割任何材料 ,特别适用于精加工前的粗加工、切割热处理过的材料、切割复杂的几何图形件和冷加工等 ,而且切缝窄、部件之间结合密贴、节省材料。同时将磨料水喷射切割与等离子和激光切割进行了比较 The principle, characteristics, development history and application status of abrasive water jet cutting technology are introduced. The composition and application of abrasive water jet cutting machine are also introduced. Because abrasive water jet cutting tools do not come into direct contact with the material, they do not heat or stress the material as a result of processing, nor harden the metal or develop as-cast microstructure. Therefore, the technology can cut any material, especially suitable for roughing before finishing, cutting heat-treated material, cutting complex geometric figure and cold working, etc., and the cutting is narrow, the combination of parts is close and save material. At the same time abrasive blast jet cutting was compared with plasma and laser cutting