压缩机叶片激光再制造成形闭环控制设计与实现  

Design and implementation of laser refabrication forming closed-loop controlling for compressor blade

作　　者：任维彬 董世运[2] 徐滨士[2] 周金宇[1] 王玉江 

机构地区：[1]江苏理工学院机械工程学院,常州213001 [2]装甲兵工程学院装备再制造技术国防科技重点实验室,北京100072

出　　处：《焊接学报》2018年第3期11-15,共5页Transactions of The China Welding Institution

基　　金：国家自然科学基金项目(51275221);江苏省高校自然科学研究重大项目(16KJA460002);国家重点基础研究发展计划(2011CB013400)

摘　　要：针对压缩机叶片激光再制造成形精度要求高、形状及形变控制难度大以及成形过程自动化、智能化水平低的工程实际情况,以边部非规则体积损伤压缩机薄壁叶片成形为目标,设计并实现了叶片激光再制造成形闭环控制系统,实现了形状及形变尺寸的闭环监测和激光功率的在线调节,开展了体积损伤薄壁叶片的激光再制造成形闭环控制.试验结果表明,叶片形状恢复充分,表层无裂纹,系统尺寸监测精度可达0.1 mm,系统参数反馈周期为0.5 s,采样频率为2 Hz.Aiming at the high precision in forming demand,the high difficulty in shape and deformation controlling and the low level of intelligence of the engineering application,the laser refabrication forming closed-loop controlling system was designed and implemented to achieve the goal of the thin-wall compressor blade forming with volume damage on the edge. The system obtained the closed loop monitoring of the dimension and deformation dimension,and on-line regulating the laser power.The laser refabrication forming experiment of thin-wall blade was conducted. The result showed that the shape recovery was full and on cracks existed in the surface. The system monitor precision for dimension could reach 1 mm. And the feedback loop and sampling frequency were up to 0. 5 s and 2 Hz,respectively.

关 键 词：激光再制造 压缩机叶片 闭环控制 形变控制 

分 类 号：TG407[金属学及工艺—焊接]