考虑层间停光的废旧机械零件多区域多层激光熔覆路径规划

doi:10.3901/JME.2021.15.211

机械工程学报 ›› 2021, Vol. 57 ›› Issue (15): 211-221.doi: 10.3901/JME.2021.15.211

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考虑层间停光的废旧机械零件多区域多层激光熔覆路径规划

王蕾, 周楚建, 张泽琳, 刘翔, 张欢, 夏绪辉

武汉科技大学冶金装备及其控制教育部重点实验室武汉 430081

收稿日期:2020-09-02 修回日期:2020-12-15 出版日期:2021-08-05 发布日期:2021-11-03
通讯作者: 张泽琳(通信作者),男,1988年出生,博士,副教授,硕士研究生导师。主要研究方向为制造系统工程、绿色制造技术及装备、智能选矿技术及装备。E-mail:zhangzelin@wust.edu.cn
作者简介:王蕾,女,1987年出生,博士,副教授,硕士研究生导师。主要研究方向为制造系统工程、再制造服务、逆向供应链服务。E-mail:wanglei1987@wust.edu.cn;周楚建,男,1996年出生,硕士研究生。主要研究方向为再制造服务。E-mail:zhouchujian@vip.qq.com;刘翔,男,1983年出生,博士研究生,工程师。主要研究方向为制造系统工程、再制造服务。E-mail:liuxiang@wust.edu.cn;张欢,女,1990年出生,博士,讲师。主要研究方向为制造系统工程、材料成形。E-mail:zhanghuan0217@hotmail.com;夏绪辉,男,1966年出生,博士,教授,博士研究生导师。主要研究方向为制造系统工程、逆向供应链管理、再制造服务。E-mail:xiaxuhui@wust.edu.cn
基金资助:
湖北省重点研发计划（2020BAB047）；国家自然科学基金（51805385）；襄阳市重点研发计划（2020AAT001420）资助项目。

Multi-zone and Multi-layer Laser Cladding Path Planning for Scrapping Mechanical Parts Considering Interlaminar Time Interval

WANG Lei, ZHOU Chujian, ZHANG Zelin, LIU Xiang, ZHANG Huan, XIA Xuhui

Key Laboratory of Metallurgical Equipment and Control Technology, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081

Received:2020-09-02 Revised:2020-12-15 Online:2021-08-05 Published:2021-11-03

摘要/Abstract

摘要： 激光熔覆是实现废旧机械产品广义生长的关键技术之一。层间停光时间对激光熔覆后产品组织特性和力学性能有重要影响。在分析熔覆层整体硬度与层间停光时间和熔覆层数关系的基础上，建立最高熔覆区域硬度条件下最佳层间停光时间与熔覆层数的数学模型。综合考虑最佳层间停光时间和激光逐层扫描路径，制定熔覆头空行程移动路径挑选规则，建立多区域多层激光熔覆路径规划模型。提出一种改进蚁群算法对模型寻优求解，采用多层整数编码方式，克服不同区域不同熔覆层编码混乱的问题；提出路径选择策略并引入激励函数，避免算法在运算初期出现局部最优现象；改进信息素分配机制，以提高运算收敛速度和准确性。通过方案的对比仿真，验证模型的正确性；将改进算法与传统算法寻优结果进行对比，验证改进算法的有效性和优越性。

关键词: 再制造, 激光熔覆, 层间停光时间, 路径规划, 改进蚁群算法

Abstract: Laser cladding is one of the key technologies to realize the generalized growth of scrapping machinery products. Time interval on multilayer laser cladding greatly affects the microstructure and mechanical properties of the laser cladding products. A correlation mathematical model of the optimal time interval and the number of cladding layers under the highest hardness of the cladding area is established based on the relationship between overall hardness of the cladding layer, time interval on multilayer laser cladding and the number of cladding layers. With a consideration of the optimal time interval and layer by layer scanning path, the selection rules for the empty travel path of the cladding head is formulated and a multi-zone and multi-layer laser cladding path planning model is established. An improved ant colony algorithm for model optimization is proposed. A multi-layer integer coding is adopted to overcome the problem of coding confusion between different cladding layers and different zones. The rule of path selection is made and the incentive function is introduced to avoid the local optimization in the initial stage of the algorithm, and the pheromone allocation mechanism is improved to optimize convergence speed and accuracy. Simulation test verify the correctness of the model and comparison of algorithm results verify the effectiveness and superiority of the improved algorithm.

Key words: remanufacturing, laser cladding, time interval on multilayer laser cladding, path planning, improved ant colony algorithm

中图分类号:

TG156
TH16

王蕾, 周楚建, 张泽琳, 刘翔, 张欢, 夏绪辉. 考虑层间停光的废旧机械零件多区域多层激光熔覆路径规划[J]. 机械工程学报, 2021, 57(15): 211-221.

WANG Lei, ZHOU Chujian, ZHANG Zelin, LIU Xiang, ZHANG Huan, XIA Xuhui. Multi-zone and Multi-layer Laser Cladding Path Planning for Scrapping Mechanical Parts Considering Interlaminar Time Interval[J]. Journal of Mechanical Engineering, 2021, 57(15): 211-221.

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考虑层间停光的废旧机械零件多区域多层激光熔覆路径规划

Multi-zone and Multi-layer Laser Cladding Path Planning for Scrapping Mechanical Parts Considering Interlaminar Time Interval

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