基于光内同轴送粉技术，提出了激光熔覆无支撑偏移堆积斜壁的方法。
Based on the internal laser coaxial-powder feeding technology, it brought up a method of laser cladding inclined wall accumulation without support.
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。
A new coaxial nozzle was developed and factors influencing powder stream parameter were studied and analyzed.
详细介绍了同轴送粉激光成形过程中，金属粉末与激光束相互作用时间的计算方法。
A method to calculate the interaction time between metal powder and laser beam during laser direct forming with the metal powder conveyed by coaxial powder feeder is introduced in detailed.
显然这是很有实际意义的，因为同轴送粉比预置粉末更易于实现自动化和大面积激光熔覆。
Obviously, this is very significant because the coaxial powder feeding laser cladding is easy to realize automation and big area cladding.
在激光同轴送粉熔覆中，由于激光与粉末流相互作用，粉末流整体温度分布直接影响激光熔覆的质量。
In laser coaxial cladding, laser casing qualities are directly affected by temperature field of powder flow for the interaction between laser and powers.
介绍了同轴送粉激光熔覆的工艺过程以及激光与金属粉末的作用机理，分析了影响熔覆件质量的主要因素。
The technical process of the coaxial laser cladding is introduced and the reaction mechanism between metallic powder particle and laser is analyzed.
实验的结果说明，设计的两种同轴送粉喷嘴均能够较好的满足激光熔覆对送粉喷嘴的要求，适应激光熔覆三维立体制造技术。
Results showed that the two coaxial powder-feeding nozzles designed satisfied requirements of nozzle in laser cladding process and could be used for laser cladding 3-D manufacturing.
为了在激光快速成形过程中获得较高的粉末利用率并有效改善同轴喷嘴工作性能，研制了一种新型的载气卸载后送粉的激光同轴送粉喷嘴。
In order to obtain high utilization of powder and improve working performance of coaxial nozzle, a new coaxial feeding nozzle with unloading carrier gas was researched.
研制了一种在以激光束为中心轴的圆周方向均匀对称分布四个具有同轴汇聚气的双层送粉管的送粉喷嘴。
Developed a feeding nozzle which have four double-feeding pipes with co-axial shaping gas distributes on circle orientation of laser beam with uniformity and symmetry.
研制了一种在以激光束为中心轴的圆周方向均匀对称分布四个具有同轴汇聚气的双层送粉管的送粉喷嘴。
Developed a feeding nozzle which have four double-feeding pipes with co-axial shaping gas distributes on circle orientation of laser beam with uniformity and symmetry.
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