不规则平面边界约束喷涂涂层均匀性调控方法  

Control Method of Coating Uniformity with Irregular Plane Boundary Constraints

作　　者：颜斌 曾勇[1] 赵雪雅 韩德庆 陈洪博 袁铁军[1] YAN Bin;ZENG Yong;ZHAO Xueya;HAN Deqing;CHEN Hongbo;YUAN Tiejun(School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng Jiangsu 224051,China)

机构地区：[1]盐城工学院机械工程学院,江苏盐城224051

出　　处：《机床与液压》2024年第20期48-56,共9页Machine Tool & Hydraulics

基　　金：国家自然科学基金青年科学基金项目(51405418);江苏省高校自然科学基金面上项目(22KJD460009);江苏省“青蓝工程”工程项目(2021)。

摘　　要：针对不规则平面边界约束喷涂的涂膜均匀性优化问题,提出基于膜厚精度要求的边界约束喷涂涂层均匀性调控方法。基于考虑喷枪喷涂高度和倾角为变量的静态喷涂模型,采用积分法建立喷枪沿圆弧轨迹动态喷涂的涂膜厚度分布模型,并进一步建立相邻两圆弧喷涂轨迹间涂层均匀性的优化模型;通过对不同曲率半径搭配喷涂轨迹间的涂层均匀性进行优化求解,获得相邻轨迹曲率半径搭配对膜厚误差的影响规律,并进一步给出满足膜厚精度要求的喷涂轨迹曲率半径调控与生成算法,实现涂层均匀性的调控。最后以某种不规则平面工件喷涂为例,通过实验验证所提方法的有效性和可行性。结果表明:与边界约束喷涂调控前相比,所提方法的膜厚标准差提升了13.5%,可适应膜厚精度要求;且与无边界约束的喷涂方法相比,喷涂时间减少了32.0%。Aiming at the uniformity optimization of spraying with irregular plane boundary constraints,a control method of spraying uniformity with boundary constraints based on the requirement of film thickness accuracy was proposed.Based on the static spraying model considering the spray height and inclination angle of the spray gun as variables,the film thickness distribution model of the spray gun along the arc trajectory was established by integrating method,and the optimization model of the coating uniformity between two adjacent arc spraying trajectories was further established.By optimizing the coating uniformity between different curvature radii and spraying trajectories,the influence law of the curvature radii of adjacent trajectories on the film thickness error was obtained,and the regulation and generation algorithm of the curvature radii of spraying trajectories meeting the requirements of film thickness accuracy was further given to achieve the regulation of coating uniformity.Finally,a certain irregular plane workpiece spraying was taken as an example to verify the effectiveness and feasibility of the proposed method through experiments.The results show that the proposed method improves the standard deviation of film thickness by 13.5%compared with the method before boundary constraint spraying control,which can meet the requirements of film thickness accuracy;the spraying time is reduced by 32.0%compared with the spraying method without boundary constraint.

关 键 词：不规则平面 边界约束 喷涂轨迹曲率半径 膜厚精度 调控方法 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]