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对激光直接制造和再制造技术的关键部件之一即送粉喷嘴进行研究,侧向送粉喷嘴具有方向性,不适于3D熔覆,而同轴送粉喷嘴尤其是新型同轴送粉喷嘴的研制,可真正实现三维激光直接制造和再制造,应用于复杂零件的直接制造和大型设备的再制造;通过试验研究分析了影响同轴送粉喷嘴粉末流形貌和粉末流参数的因素。
The laser direct manufacturing and remanufacturing technology, one of the key components of the powder feeding nozzle research, lateral powder feeding nozzle with directional, not suitable for 3D cladding, and coaxial powder feeding nozzle, especially the new coaxial powder feeding nozzle The laser can be directly manufactured and remanufactured by three-dimensional laser. It can be used in the direct manufacture of complex parts and the remanufacturing of large equipment. The factors influencing the powder flow morphology and powder flow parameters of coaxial powder feeding nozzle are analyzed through experimental research.