非载气式激光同轴送粉试验研究  

Research on New Coaxial Feed Laser Cladding without Carrying Gas

作　　者：杨洗陈[1] 王建军[1] 刘运武[1] 王云山[1] 李会山[1] 

机构地区：[1]天津工业大学激光技术研究所,天津300160

出　　处：《中国激光》2004年第1期120-124,共5页Chinese Journal of Lasers

基　　金：天津市科委 (津发财字 [2 0 0 0 ]第 14 0号 )资助项目

摘　　要：研制了一种非载气式激光同轴送粉系统 ,粉末流能汇聚输出 ,其焦点尺寸为 1 5mm ,焦距 fp15～ 35mm连续可调。在二维平面上熔敷消除了方向性影响 ,多层激光熔敷组织、成分及硬度分布均匀。与载气式同轴送粉相比 ,具有较高的粉末利用率 (6 0 %～ 80 % )A new coaxial feed laser cladding system without carrying gas is researched. Its technical characteristics are as follows: the diameter of focused powder stream about 1.5 mm, focusing length from 15 to 35 mm adjustable,omnidirection, open space and covenience for operating, uniform distribution of microstructure, chemical contents and microhardness, as well as high powder efficiency about 60%～80%.

关 键 词：激光技术 激光熔敷 非载气式激光同轴送粉系统 材料表面强化技术 

分 类 号：TN249[电子电信—物理电子学] TG665[金属学及工艺—金属切削加工及机床]