• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2023, Vol. 59 ›› Issue (15): 216-231.doi: 10.3901/JME.2023.15.216

• 数字化设计与制造 • 上一篇    下一篇

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光学相干成像技术在激光加工过程实时监测与控制中的应用研究进展

梅雪松1,2,3, 孙涛1,2,3, 赵万芹1,2,3, 凡正杰1,2,3, 张涛1,2,3, 唐程1,2,3, 崔健磊1,2,3, 王文君1,2,3   

  1. 1. 西安交通大学机械工程学院 西安 710049;
    2. 西安交通大学机械制造系统工程重点实验室 西安 710049;
    3. 西安交通大学陕西省智能机器人重点实验室 西安 710049
  • 收稿日期:2022-11-09 修回日期:2023-04-24 出版日期:2023-08-05 发布日期:2023-09-27
  • 通讯作者: 赵万芹(通信作者),女,1983年出生,博士,副研究员,硕士研究生导师。主要研究方向为激光光束调控精密加工及其监测技术等。E-mail:linazhao@xjtu.edu.cn
  • 作者简介:梅雪松,男,1963年出生,博士,教授,博士研究生导师。主要研究方向为激光精密加工与视觉导航,智能工厂与数字孪生,人工智能与移动机器人等。E-mail:xsmei@xjtu.edu.cn
  • 基金资助:
    国家科技重大专项(2019-VII-0009-0149)、国家自然科学基金(52105465)、航空发动机及燃气轮机基础科学中心(P2022-A-IV-002-003)、中央高校基本科研业务费专项资金(xzd012022084)和西安交通大学基本科研业务费(xyz022022027)资助项目

Recent Advances of Optical Coherence Tomography Technology in Real-time Monitoring and Control of Laser Processing

MEI Xuesong1,2,3, SUN Tao1,2,3, ZHAO Wanqin1,2,3, FAN Zhengjie1,2,3, ZHANG Tao1,2,3, TANG Cheng1,2,3, CUI Jianlei1,2,3, WANG Wenjun1,2,3   

  1. 1. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049;
    2. State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049;
    3. Shaanxi Key Laboratory of Intelligent Robots, Xi'an Jiaotong University, Xi'an 710049
  • Received:2022-11-09 Revised:2023-04-24 Online:2023-08-05 Published:2023-09-27

摘要: 激光加工技术,主要包括激光焊接技术、激光增材制造技术和激光减材制造技术,具有高加工质量、效率、无工具磨损等优点,在航空航天、生物医疗、通讯电子等领域应用广泛。随着产品精度与性能要求的逐渐提升,对激光加工的精度、效率及可控性提出了更高要求。因此,激光加工过程实时监测及调控成为当前的研究重点。相比于传统的光声热电传感监测,光学相干成像技术可以与激光束同轴耦合,从而直接获取激光加工结构的尺寸和形貌特征,具有高成像速度、高测量分辨率以及长测量范围等优点,被广泛应用于激光加工过程实时监测中。系统介绍了光学相干成像系统的基本组成、成像原理以及系统指标,在此基础上综述了光学相干成像技术在激光焊接、激光增材制造和激光减材制造实时监测与控制中的应用。最后,归纳了目前光学相干成像技术在激光加工过程监测中存在的不足和发展趋势,为激光加工过程实时监测与控制的研究工作提供了坚实基础和发展方向。

关键词: 激光加工, 实时监测, 过程控制, 光学相干成像, 研究展望

Abstract: Laser processing technology, including laser welding, additive manufacturing, subtractive manufacturing, and so on, has the advantages of high machining quality, high efficiency, and no tool wear, which is widely used in aerospace, biomedicine, communication electronics and other fields. With the improvement of precision and performance requirements, higher requirements are put forward for the precision, efficiency and controllability of laser processing. Therefore, real-time monitoring and control of laser processing has been widely concerned. Compared with the traditional optical, acoustic, thermal, electric sensing monitoring, optical coherence tomography can directly obtain the depth and morphology of the structure in laser processing via coaxially coupled with the laser beam, which has the advantages of high imaging speed, high measurement resolution and long measurement range, and is widely used in the real-time monitoring of laser processing. The basic setup, imaging principle and index of optical coherence tomography are introduced systematically. And the application of optical coherence tomography technology in real-time monitoring of laser welding, laser additive manufacturing and laser subtractive manufacturing is reviewed. Finally, the disadvantages and development trend of optical coherence tomography in real-time monitoring and control of laser processing are summarized, which provides a solid foundation and development perspective for the study of real-time monitoring and control of laser processing.

Key words: laser processing, real-time monitoring, process control, optical coherence tomography, research prospect

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