大倾角基面激光熔覆头倾斜对单道形貌的影响  

Influence of Inclination of Laser Cladding Nozzle on Cladding Layer Morphology of High Inclination Substrate

作　　者：孙业旺 石拓 魏巍 卞潇谦 张荣伟 张琪 魏超 Sun Yewang;Shi Tuo;Wei Wei;Bian Xiaoqian;Zhang Rongwei;Zhang Qi;Wei Chao(School of Optoelectronic Science and Engineering Soochow University,Suzhou215021,Jiangsu,China;School of Mechanical and Electrical Engineering,Soochow University,Suzhou215021,Jiangsu,China)

机构地区：[1]苏州大学光电科学与工程学院,江苏苏州215021 [2]苏州大学机电工程学院,江苏苏州215021

出　　处：《应用激光》2024年第3期22-30,共9页Applied Laser

基　　金：国家自然科学基金(62173239);国家自然科学基金(61903268)。

摘　　要：基于光内送粉激光熔覆成形技术,探讨在不同基板倾斜角度下,不同熔覆喷头倾斜角度对加工效果的影响。采取基板倾斜角度控制在30°~150°之间,喷头倾斜角度逆时针旋转0°~15°之间的方法,进行激光熔覆单道正交实验。结果分析表明:在不同的基板倾斜状态下,调整喷头姿态后,光场能量分布、重力分力影响、准直保护气压力拥有不同的影响权重;在基板非倾斜90°时,熔覆单道顶点偏移量随着喷头倾斜角度的增加呈现出先增加后减少的趋势;当基板倾斜90°时,熔覆单道顶点偏移量随着喷头倾斜角度的增加呈现出先减少后增加的趋势。This study investigates the impact of varying inclination angles of the cladding nozzle on processing outcomes under different substrate inclinations using laser cladding technology with internal powder feeding.The orthogonal experiment of laser cladding was carried out by controlling the inclination angle of the substrate between 30°and 150°and rotating the inclination angle of the nozzle counterclockwise between 0°and 15°.The results show that the laser energy distribution,the influence of gravity component and the collimation protective gas pressure have different influence weights after adjusting the nozzle position under different substrate tilt states.The peak point offset of the cladding layer initially increases and then decreases with nozzle tilt angle when the substrate inclination is non-90°.Conversely,at a substrate inclination of 90°,the peak point offset decreases initially and then increases with increasing nozzle tilt angle.

关 键 词：激光熔覆 光内送粉 倾斜基板 倾斜熔覆喷头 单道形貌 

分 类 号：TN249[电子电信—物理电子学]