基于正交试验的激光标识工艺研究  

Research of the Process of Laser Marking Technology Based on Orthogonal Experiment

作　　者：骆公序[1] 陈媛[1,2] 张玲玲 李国旗[1,2] 杜远超 舒天娇[1,2] Luo Gongxu;Chen Yuan;Zhang Lingling;Li Guoqi;Du Yuanchao;Shu Tianjiao(Shanghai Institute of Laser Technology,Shanghai,200233,China;Shanghai Laser DPM Traceability Engineering Research Center,Shanghai,200233,China)

机构地区：[1]上海市激光技术研究所,上海200233 [2]上海激光直接物标溯源工程技术研究中心,上海200233

出　　处：《应用激光》2022年第6期56-61,共6页Applied Laser

基　　金：2019年工业互联网创新发展工程-工业互联网标识解析二级节点(航空航天行业应用服务平台)项目(招标编号:TC190A3X8-16)。

摘　　要：采用1060 nm光纤打标机在2024铝合金表面进行方形标识,主要研究扫描速度、填充间隔、激光平均功率等工艺参数对铝合金材料表面标识效果的影响。基于正交试验的方法,根据3因素5水平正交表设计激光加工的工艺参数,利用色差仪和超景深三维显微镜对激光标识效果的色差和表面形貌粗糙度进行测量。试验结果表明,激光标识时扫描轨迹的重叠率和光斑重叠率是影响色差的主要因素,激光标识时材料吸收激光的能量大小和热影响是影响粗糙度的主要因素。经过正交极差优化后的最佳参数组合为扫描速度V=644 mm/s,填充间隔F=0.028 mm,激光功率P=15 W,最终标识效果为表面粗糙度为1.5μm,色差为9.41 NBS。A 1060 nm fiber laser marking machine was used to mark the square on the surface of 2024 aluminum alloy,and the effects of scanning speed,filling interval,laser average power and other process parameters on the laser marking quality of aluminum alloy are studied.Three factors and a 5-level orthogonal experiment were designed to study the effect of laser process parameters on the quality of the laser marking.The color difference and surface roughness of laser marking were evaluated by colorimeter and ultra-depth three-dimensional microscope.Results show that the overlap rate of scanning track and beam spot have more obvious influence on the color difference of laser marking,and the energy and heat of materials receiving laser have more obvious influence on the roughness of laser marking.The optimized parameter combination after orthogonal optimization was:the scanning speed of 644 mm/s,the filling interval of 0.028 mm and the laser power of 15 W.The optimized marking has a surface roughness of 1.5μm and a color difference of 9.41 NBS.

关 键 词：激光直接标识 表面粗糙度 色差 正交试验 

分 类 号：TN249[电子电信—物理电子学]