基于边缘迭代模型的激光沉积熔池宽度预测方法  

Prediction Method of Laser-Deposited Melt Pool Width Based on Edge Iterative Model

作　　者：苗立国 邢飞 柴媛欣 闫成鑫 刘伟军 Miao Liguo;Xing Fei;Chai Yuanxin;Yan Chengxin;Liu Weijun(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China;Nanjing Zhongke Raycham Laser Technology Co.,Ltd,Nanjing 210038,China)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870 [2]南京中科煜宸激光技术有限公司,江苏南京210038

出　　处：《稀有金属材料与工程》2024年第4期978-987,共10页Rare Metal Materials and Engineering

基　　金：National Key Research and Development Program of China(2022YFB4602200);National Science and Technology Major Project(2019-VII-0004-0144)。

摘　　要：根据熔池尺寸特征空间分布规律,提出了一种基于边缘迭代模型的熔池宽度预测方法。为了获得精确的熔池宽度,采用数学形态学的方法对熔池图像进行去噪,并用手动阈值的方法对熔池图像进行粗分割。之后利用Canny算法提取出熔池边缘。最后,使用边缘迭代模型进行边缘迭代,得到精分割后的熔池宽度。对比实验结果表明,该算法具有良好的检测精度和鲁棒性,且简易高效。According to the spatial distribution pattern of melt pool size features,a prediction method of melt pool width based on edge iterative model was proposed.In order to obtain accurate melt pool width,mathematical morphological method was used to denoise the melt pool image and coarse segmentation was conducted on the melt pool image by manual thresholding method.The Canny algorithm was then employed to extract the melt pool edge.Finally,the edge iterative model was used for edge iteration and the melt pool width after fine segmentation was obtained.Comparison experiment results show that this algorithm has good accuracy and robustness,and it is simple and efficient.

关 键 词：激光金属沉积制造 熔池 边缘迭代模型 特征提取 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]