飞秒激光烧蚀模型与面齿轮齿面影响研究  

Research on Model of Femtosecond Laser Ablation and Influences of Face Gear Tooth Surface

作　　者：李湾 明兴祖 樊滨瑞[3] 杨向东 陈伟全 姚千里 Li Wan;Ming Xingzu;Fan Binrui;Yang Xiangdong;Chen Weiquan;Yao Qianli(Department of Mechanical and Electrical Engineering,Hunan Automotive Engineering Vocational College,Zhuzhou 412000,Hunan,China;School of Mechanical and Electrical Engineering,Guangzhou Huali College,Guangzhou 511325,Guangdong,China;School of Mechanical Engineering,Hunan University of Technology,Zhuzhou 412007,Hunan,China)

机构地区：[1]湖南汽车工程职业学院机电工程学院,湖南株洲412000 [2]广州华立学院机电工程学院,广东广州511325 [3]湖南工业大学机械工程学院,湖南株洲412007

出　　处：《应用激光》2024年第9期63-74,共12页Applied Laser

基　　金：湖南省自然科学基金资助项目(2023JJ50207);湖南省教育厅科学研究优秀青年项目(22B0994);广东省普通高校重点领域专项(2023ZDZX3050、2023ZDZX3051);广东省普通高校青年创新项目(2023KQNCX137);国家自然科学基金资助项目(51975192)。

摘　　要：飞秒激光精修齿面成为复杂齿轮加工的一种新方法。采用网格划分方法将面齿轮齿面划分为5×9的网格点,利用齿面理论三维模型测量每个节点的飞秒激光入射角;通过分析作用在齿面上的激光能量密度分布,确定齿面飞秒激光入射角与离焦量的定量关系,建立齿面飞秒激光烧蚀模型,仿真分析得到烧蚀凹坑深度与激光入射角的变化规律。通过实验得出仿真齿面与烧蚀后实验齿面的烧蚀凹坑深度最大相对误差为6.53%,误差在合理范围内,说明飞秒激光烧蚀模型可行,为面齿轮材料18Cr2Ni4WA的齿面飞秒激光精修提供了技术基础。Femtosecond laser precision correction of tooth surfaces has become a new method for complex gear machining.In this paper,the meshing method is used to divide the tooth surface of the face gear into 5×9 grid points,and the femtosecond laser incidence angle of each node is measured through the three-dimensional model of tooth surface theory.By analyzing the distribution of laser energy density acting on the tooth surface,the quantitative relationship between the femtosecond laser incidence angle and defocus amount on the tooth surface is determined,the femtosecond laser ablation model of the tooth surface is established,and the variation patterns of the depth of the ablation pit and laser incidence angle are simulated and analyzed.Through experiments,it is found that the maximum relative error between the simulated tooth surface and the experimental tooth surface after ablation is 6.53%,which is within a reasonable range.This indicates that the femtosecond laser ablation model is feasible and provides a technical basis for the femtosecond precision correction of face gear material 18Cr2Ni4WA.

关 键 词：飞秒激光精修 烧蚀模型 面齿轮 网格划分 齿面影响 

分 类 号：TN249[电子电信—物理电子学]