• Laser & Optoelectronics Progress
  • Vol. 58, Issue 17, 1714009 (2021)
Cheng Chen1、*, Xijun Hua1, Dongpo Zhu1, sheng Xu2, and xuan Xie2
Author Affiliations
  • 1School of Mechanical Engineering, Jiangsu University, Zhenjiang , Jiangsu 212013, China
  • 2School of Automotive and Transportation Engineering, Jiangsu University, Zhenjiang , Jiangsu 212013, China
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    DOI: 10.3788/LOP202158.1714009 Cite this Article Set citation alerts
    Cheng Chen, Xijun Hua, Dongpo Zhu, sheng Xu, xuan Xie. Effect of Pulse Times on Texture Morphology under Millisecond Laser[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1714009 Copy Citation Text show less

    Abstract

    In order to explore the evolution law of the texture morphology under the action of multi-pulse millisecond laser, a two-dimensional symmetric model is established in this paper, which considered the influence of recoil pressure, surface tension, and evaporation rate on the change of molten pool, and is used to analyze the evolution law of the texture morphology and carry out experimental verification. The results show that under the action of recoil pressure, the depth and diameter of the pit increase with the increase of the number of pulses. The central bulge and the edge bulge are related to the thermal capillary force and Laplace pressure, and the height of bulge decreases with the increase of the number of pulses. At the edge of the molten pool, the molten material flows to the center under the influence of the thermal capillary force, and the height of the edge bulge decreases with the increase of the number of pulses.
    Cheng Chen, Xijun Hua, Dongpo Zhu, sheng Xu, xuan Xie. Effect of Pulse Times on Texture Morphology under Millisecond Laser[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1714009
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