机器人激光再制造中粉末流浓度场的检测

Detection of Powder Stream Concentration Field in Robot Laser Remanufacturing

研制了一套低功率、便携、便宜、高精度的粉末流场检测系统,能对激光再制造中同轴送粉条件下金属粉末流浓度场进行检测,能适应激光机器人修复的需要。该系统主要包括532 nm,100 mW半导体激光器,片光透镜,CCD相机和检测分析软件。实验结果表明,该系统对金属粉末流浓度体积分布检测与理论计算结果有较好的一致性,能有效地指导同轴送粉嘴的设计和机器人在激光再制造中粉末流参数的测定。

A low power,portable,cheap and high precision detection system is developed to measure the concentration field of powder steam,and it is suitable to requirement of laser robot repair.The system mainly consists of 532 nm,100 mW semiconductor laser,sheet of lens,charge coupled device（CCD） camera and analysis software.It is shown that the consistency in the detection of volume of concentration distribution of metal powder stream and the theoretical calculation is very good.The system could be an effective guiding significance for the design of co-axial nozzle and the determination of powder stream parameter in robot laser repair.