影响激光熔覆质量的主要因素

激光熔覆层中的组织晶粒度和硬度高，稀释率低，抗摩擦磨损和抗腐蚀性能好；激光熔覆技术能改善零件质量，延长零件使用期限，提高生产系统的安全性和可靠性；本文分析了激光功率、光斑形状尺寸（或离焦量）和扫描速度、基体材料、熔覆层材料、搭接率等工艺参数对激光熔覆质量的影响规律及改善方法。

The Factor of Influence on Laser Cladding Quality

The results show that there are higher grain grade and hardness,lower dilution and better performance of resistance to abrasion,wear and anti-erosion in the laser cladding layer.The new technology of laser cladding can obviously improve the quality of machine parts Consequently it is possible to lengthen the service life of machine parts and to raise the safety and reliability of the production system.Subsequently the influence of laser cladding parameters(such as the power of laser,the size and form of facula, the laser cladding speed,the material of cladding base and layer,the rate of overlap)on cladding layer quality is analyzed.