Progress in applications of shockwave induced by short pulsed laser on surface processing. (January 2023)

• Record Type: Journal Article
• Authors: Zhang, Zhen; Qiu, Wenzhe; Zhang, Guojun; Liu, Denghua; Wang, Peng
• Is Part Of: Optics & laser technology. Volume 157(2023)
• Publication Date: 2023-01
• Subjects: Short pulsed laser -- Shockwave -- Force effect -- Surface processing -- Stress distribution; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2022.108760
• Languages: English
• ISSNs: 0030-3992

Abstract

Abstract: The force effect of the shockwave generated by the short-pulse and ultra-short-pulse laser enables the laser to enhance the mechanical properties of the material without ablating the material, improve the microstructure, change the shape of the material, and remove the tiny particles attached to the surface of the material, etc. Therefore, it is widely used in surface strengthening, surface cleaning, metal forming, etc. Laser shock peening (LSP) and laser shock cleaning (LSC) are two applications of laser shockwave in surface processing. The force effect of the laser shockwave allows non-thermal treatment has been used in aerospace, biomedical, semiconductor, etc. This paper reviews the principle of laser shockwave effects and the existing processing methods of short laser-included plasma shockwave; the numerical model of laser shock effects, including the laser–material interaction model and surface processing model; the effects of laser parameters on processing performance; the mechanical properties, the microstructure, and the surface features; finally, the future research and development of laser shock effect are prospected. Highlights: Research and development of laser shockwave on surface processing are reviewed. Theoretical models of laser shockwave processing are discussed. Effects of laser parameters on processing performance are analyzed. Mechanical properties, microstructures and surface features after laser shockwave processing are studied. Graphical abstract: