• Chinese Journal of Lasers
  • Vol. 39, Issue 5, 503004 (2012)
Huang Zhihui*, Liu Huixia, Shen Zongbao, Li Pin, Hu Yang, Liu Hui, Du Daozhong, and Wang Xiao
Author Affiliations
  • [in Chinese]
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    DOI: 10.3788/cjl201239.0503004 Cite this Article Set citation alerts
    Huang Zhihui, Liu Huixia, Shen Zongbao, Li Pin, Hu Yang, Liu Hui, Du Daozhong, Wang Xiao. Process Parameters Analysis on Surface Texturing under Laser Shock Peening[J]. Chinese Journal of Lasers, 2012, 39(5): 503004 Copy Citation Text show less

    Abstract

    Laser surface texturing (LST) is widely used in surface micro-forming, but its main problem is that the ablation process causes melting, cracking and changing of the surface microstructure. By using laser shock processing (LSP) micro dents are fabricated on Al7075 surface, which not only overcomes the weakness of LST, but also inherits the advantage of LSP. Choosing AxioCSM700 true color confocal scanning microscopy and Vecco WYKO surface morphology, the geometry morphology of micro dents are observed. With HXD-1000TMSC/LCD MH-VK double press heads, the interior and surface micro-hardness of micro dents are measured. Experimental results show that the diameter and the depth of micro dents change with laser pulse energy, the times of laser shock, focal length and thickness of confined layer K9 glass. The hardness of micro dent increases gradually along radial direction and the biggest hardness occurs in the center, which effectively improves the wear resistance of material.
    Huang Zhihui, Liu Huixia, Shen Zongbao, Li Pin, Hu Yang, Liu Hui, Du Daozhong, Wang Xiao. Process Parameters Analysis on Surface Texturing under Laser Shock Peening[J]. Chinese Journal of Lasers, 2012, 39(5): 503004
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