In laser coaxial cladding, laser casing qualities are directly affected by temperature field of powder flow for the interaction between laser and powers.
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。
Obviously, this is very significant because the coaxial powder feeding laser cladding is easy to realize automation and big area cladding.
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。
The anti-cavitation laser cladding technique for the surface of stainless steel is reviewed. The equipments, deposition process and laser cladding powder are introduced.
综述了国内外不锈钢抗空蚀激光表面熔覆技术的研究现状，介绍了该技术的特点，设备和抗空蚀熔覆粉末体系。
The influence of laser power, scanning speed, powder feed rate, spot diameter and preheating on the temperature of molten pool were revealed in the process of single-pass cladding.
在单道熔覆中通过跟踪测量研究了激光功率、扫描速度、送粉速率、光斑直径和基体预热温度对熔池温度的影响规律。
The influence of the crystal orientation of the substrate on microstructure is investigated by multi layer laser cladding with the powder of nickel base superalloy.
采用镍基合金粉，研究了激光多层涂覆过程中基材晶体取向对涂层凝固组织的影响规律。
Experimental evidence is acquired for obtaining a good interface; and a theoretical basis is presented for determining the reasonable processing schedule in powder feeding type laser cladding as well.
为获得良好的结合界面提供了实验证据，为制定送粉激光熔覆工艺规程提供了理论依据。
The scrap mould were repaired by laser cladding technology with self-made alloying powder.
采用自配的合金粉末，利用激光熔覆技术，对报废锻压模具进行了修复；
The results show that the minimum laser specific energy, the maximum cladding thickness and the contact angle have a linear relationship with the maximum powder density per area.
结果表明，最小激光比能、最大熔覆层厚度、接触角均与最大粉末面密度呈线性关系；
A temperature rise model of laser cladding material powder by side-injection is established. In this model, the distribution of laser power is considered.
建立了侧向送粉激光熔覆粉末颗粒温升的数学模型，该模型可以考虑激光束的功率分布。
Based on the internal laser coaxial-powder feeding technology, it brought up a method of laser cladding inclined wall accumulation without support.
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。
The technical process of the coaxial laser cladding is introduced and the reaction mechanism between metallic powder particle and laser is analyzed.
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。
According to the present status of laser cladding powder feed unit, in order to solve the problem of powder feeding uniform, stabilization, a new powder feed unit is developed.
针对当前各种喷焊、熔覆中输料所用送粉器的现状，为解决其中送粉均匀、稳定的问题，研制了一种新型磁力送粉器。
The nickel base alloy coatings were fabricated by powder feeding laser induction hybrid cladding. The microstructure and cracking behavior of coating were studied.
采用送粉激光感应复合熔覆技术制备了镍基合金熔覆涂层，研究了涂层的组织和裂纹行为。
According to the character of laser cladding, a finite element model for analyzing the temperature field was built and the laser cladding process with powder feeding was analyzed with this model.
根据激光熔覆的特点，建立了激光熔覆温度场分析模型，对送粉激光熔覆过程温度场进行了有限元分析。
According to the physics process of powder feed laser cladding, the basic problems are brought up that must be considered in the numerical model for that process.
根据送粉式激光熔覆的物理过程，提出了送粉式激光熔覆数值模型必须考虑的基本问题。
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.
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.
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。
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