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Advances in Manufacturing ›› 2021, Vol. 9 ›› Issue (4): 538-557.doi: 10.1007/s40436-021-00355-0

• ARTICLES • 上一篇    

Theoretical and experimental study of surface texturing with laser machining

Ya-Zhou Mao1, Jian-Xi Yang1, Jin-Chen Ji2   

  1. 1 School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, Henan, People's Republic of China;
    2 School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
  • 收稿日期:2020-10-05 修回日期:2020-12-20 发布日期:2021-11-12
  • 通讯作者: Jian-Xi Yang E-mail:9901450@haust.edu.cn
  • 基金资助:
    This work was supported by the National Science and Technology Major Project (Grant No. 21010098), the National Key Technologies R & D Program of Henan (Grant No. 162102210048), Henan Provincial Key Laboratory of High Performance Bearing Technology (Grant No. 2016ZCKF02), and the platform of Henan Collaborative Innovation Center for Advanced Manufacturing of Mechanical Equipment. The authors would also like to express their sincere thanks to the anonymous referees and the editor for their constructive comments.

Theoretical and experimental study of surface texturing with laser machining

Ya-Zhou Mao1, Jian-Xi Yang1, Jin-Chen Ji2   

  1. 1 School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, Henan, People's Republic of China;
    2 School of Mechanical and Mechatronic Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
  • Received:2020-10-05 Revised:2020-12-20 Published:2021-11-12
  • Contact: Jian-Xi Yang E-mail:9901450@haust.edu.cn
  • Supported by:
    This work was supported by the National Science and Technology Major Project (Grant No. 21010098), the National Key Technologies R & D Program of Henan (Grant No. 162102210048), Henan Provincial Key Laboratory of High Performance Bearing Technology (Grant No. 2016ZCKF02), and the platform of Henan Collaborative Innovation Center for Advanced Manufacturing of Mechanical Equipment. The authors would also like to express their sincere thanks to the anonymous referees and the editor for their constructive comments.

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摘要： To explore the forming process and mechanism of the surface texture of laser micropits, this paper presents the thermal model of laser machining based on the Neumann boundary conditions and an investigation on the effects of various parameters on the processing. The surface profile and quality of the formed micropits were analyzed using NanoFocus 3D equipment through a design of experiment (DOE). The results showed that more intense melting and splashing occurred with higher power density and narrower pulse widths. Moreover, the compressive stress is an important indicator of the damage effects, and the circumferential thermal stress is the primary factor influencing the diameter expansion. During the process of laser machining, not only did oxides such as CuO and ZnO generate, the energy distribution also tended to decrease gradually from region #1 to region #3 based on an energy dispersive spectrometer (EDS) analysis. The factors significantly affecting the surface quality of the micropit surface texture are the energy and pulse width. The relationship between taper angle and energy is appropriately linear. Research on the formation process and mechanism of the surface texture of laser micropits provides important guidance for precision machining.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-021-00355-0

关键词: Laser machining, Thermal stress damage, Surface texturing, Design of experiment (DOE), Micropit

Abstract: To explore the forming process and mechanism of the surface texture of laser micropits, this paper presents the thermal model of laser machining based on the Neumann boundary conditions and an investigation on the effects of various parameters on the processing. The surface profile and quality of the formed micropits were analyzed using NanoFocus 3D equipment through a design of experiment (DOE). The results showed that more intense melting and splashing occurred with higher power density and narrower pulse widths. Moreover, the compressive stress is an important indicator of the damage effects, and the circumferential thermal stress is the primary factor influencing the diameter expansion. During the process of laser machining, not only did oxides such as CuO and ZnO generate, the energy distribution also tended to decrease gradually from region #1 to region #3 based on an energy dispersive spectrometer (EDS) analysis. The factors significantly affecting the surface quality of the micropit surface texture are the energy and pulse width. The relationship between taper angle and energy is appropriately linear. Research on the formation process and mechanism of the surface texture of laser micropits provides important guidance for precision machining.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-021-00355-0

Key words: Laser machining, Thermal stress damage, Surface texturing, Design of experiment (DOE), Micropit

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