蚁群算法的激光熔覆工艺多目标优化研究  

Multi-objective optimization of laser cladding process based on ant colony algorithm

作　　者：周其龙 窦丽霞 ZHOU Qilong;DOU Lixia(Zhongyuan Institute of Science and Technology,Zhengzhou 450000,China)

机构地区：[1]中原科技学院,郑州450000

出　　处：《激光杂志》2022年第9期213-217,共5页Laser Journal

基　　金：河南省高等学校重点科研项目(No.16A110015)。

摘　　要：激光熔覆由于多种因素导致熔覆层过烧、不成形等问题,且传统方法加工磨损率较高以及应用效果较差。为此,设计基于蚁群算法的激光熔覆工艺多目标优化方法。以激光熔覆层的横截面为优化目标,用数学公式描述熔覆层的外观,设置目标函数以及约束条件,同时将熔覆层的外观设定为工艺流程,采用蚁群算法寻找最优加工路径,确定切割加工路径,以此完成激光熔覆工艺多目标优化。实验结果表明,相关工艺在优化后,有效提高了试样硬度,并将其与优化前的方法做了对比,结果表明,此次研究方法在加工后熔道表面没有出现缺陷情况,优化后的加工磨损率0.0148%,磨损率也较小,较之前方法应用效果更佳。Due to a variety of factors,laser cladding leads to problems such as overburning and formlessness of the cladding layer,and the processing wear rate of traditional methods is high and the application effect is poor.Therefore,a multi-objective optimization method of laser cladding process based on ant colony algorithm is designed.Taking the cross section of the laser cladding layer as the optimization objective,the appearance of the cladding layer is described by a mathematical formula,and the objective function and constraints are set.At the same time,the appearance of the cladding layer is set as the process flow.Ant colony algorithm is used to find the optimal processing path and determine the cutting processing path,so as to complete the multi-objective optimization of the laser cladding process.The experimental results show that the hardness of the sample is effectively improved after the optimization of the related process,and the method is compared with the method before optimization.The results show that the research method has no defects on the weld bead surface after machining,the optimized machining wear rate is 0.0148%,and the wear rate is also small,which is better than the application effect of the previous method.

关 键 词：蚁群算法 激光熔覆工艺 多目标优化 熔覆层 横截面切割 

分 类 号：TN249[电子电信—物理电子学]