• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2022, Vol. 58 ›› Issue (5): 223-238.doi: 10.3901/JME.2022.05.223

• 数字化设计与制造 • 上一篇    下一篇

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激光增材制造过程低碳建模与工艺参数优化

姜兴宇, 刘傲, 杨国哲, 刘伟军, 卞宏友, 索英祁   

  1. 沈阳工业大学机械工程学院 沈阳 110870
  • 收稿日期:2021-03-03 修回日期:2021-10-09 出版日期:2022-03-05 发布日期:2022-04-28
  • 通讯作者: 杨国哲(通信作者),男,1973年出生,博士,讲师。主要研究方向为激光增材制造。E-mail:xiakexing1999@126.com E-mail:xiakexing1999@126.com
  • 作者简介:姜兴宇,男,1980年出生,教授,博士研究生导师。主要研究方向为绿色制造、制造过程能耗优化。E-mail:xingtianliu@sjtu.edu.cn;刘傲,男,1995年出生,硕士研究生。主要研究方向为绿色制造。E-mail:996726899@qq.com;刘伟军,男,1969年出生,博士,教授,博士研究生导师。主要研究方向为激光增材制造;卞宏友,男,1975年出生,博士,教授,博士研究生导师。主要研究方向为激光增材制造;索英祁,女,1994年出生,硕士研究生。主要研究方向为绿色制造。
  • 基金资助:
    辽宁省“兴辽英才计划”科技创新领军人才(XLYC1802038);青年拔尖人才(XLYC1807211);沈阳中青年科技创新人才(RC190148);辽宁省重点领域开放基金(2019-KF-04-02)资助项目。

Low-carbon Modeling and Process Parameter Optimization in Laser Additive Manufacturing Process

JIANG Xing-yu, LIU Ao, YANG Guo-zhe, LIU Wei-jun, BIAN Hong-you, SUO Ying-qi   

  1. School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870
  • Received:2021-03-03 Revised:2021-10-09 Online:2022-03-05 Published:2022-04-28

摘要: 激光增材制造是基于高能激光束快速熔覆金属粉末成形的工艺,其工艺过程时间长、能耗大会导致产生大量碳排放,基于此,系统分析激光增材制造过程的碳排放特性,建立激光增材制造过程碳排放模型;在此基础上,以碳排放、粉末利用率及熔覆质量为优化目标,建立激光增材制造过程工艺参数多目标优化模型,提出一种结合改进非支配排序与人工鱼步长人工鱼群求解算法,解决模型求解后期寻找参数解集盲目性大、目标函数解集均匀性差问题,通过熵权-灰色关联分析综合Pareto最优解集法获取最优工艺参数组合。最后,以LDM4030激光增材制造装备为试验平台进行激光熔覆试验,试验结果表明:该模型及算法可有效降低激光增材制造过程碳排放,提高粉末利用率,保证熔覆质量,为我国激光增材制造装备产业实现碳达峰、碳中和提供一条有效途径。

关键词: 激光增材制造, 碳排放, 工艺参数, 多目标优化

Abstract: Laser additive manufacturing is a rapid cladding metal powder forming process based on high energy laser beam which produce a large amount of carbon emissions due to long time process and high energy consumption. The carbon emission characteristics of laser additive manufacturing process are systematically analyzed at first, and the carbon emission model of laser additive manufacturing process is established. Then, a multi-objective optimization model of process parameters in laser additive manufacturing process is established with the optimization objectives of carbon emission, powder utilization rate and cladding quality.Furthermore, a novel artificial fish swarm optimization algorithm combined with improved non-dominated sorting and artificial fish step size is proposed which solves the problem that it is blindness of finding parameter solution set and the poor uniformity of objective function solution set. And then the optimal process parameter combination is obtained by entropy weight-grey correlation analysis combined with Pareto optimal solution set method. Finally, the laser cladding experiment is carried out on the LDM4030 laser additive manufacturing equipment as the experimental platform. The experimental results show that the model and algorithm can effectively reduce the carbon emission in the laser additive manufacturing process, improve the utilization rate of powder and ensure the quality of cladding. It provides an effective way for China's laser additive manufacturing equipment industry to achieve carbon peak and carbon neutralization.

Key words: laser additive manufacturing, carbon emissions, process parameters, multi-objective optimization

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