Effect of Laser Processing Parameters on Surface Texture of Ti6Al4V Alloy

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Xi, Xiaoying^1 ; Pan, Yongzhi^1 ; Wang, Pengcheng^1 ; Fu, Xiuli^1

School of Mechanical Engineering, University of Jinan, No. 336, Nanxinzhuang West Road, Ji'nan, Shandong

250022, China^1

关键词: Chemical compositions;    Laser parameters;    Laser processing parameters;    Micromorphologies;    Nanosecond lasers;    Optimum combination;    Repetition frequency;    Surface textures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/2/022052/pdf
DOI  :  10.1088/1757-899X/563/2/022052

来源: IOP

【 摘 要 】

Surface micro-machining was performed on Ti6Al4V alloy sample by nanosecond laser. The micro-morphology, the depth of texture and the chemical composition of melt deposits were analyzed through different techniques including Ultra-Depth Microscopy, SEM and EDS. The single factor method was applied to investigate the influence of different laser parameters on the depth of texture and micro-morphology. The result showed that the depth of texture increased first and decreased with the increase of average power (11-20.9W), the texture depth decreases sharply when the scanning speed increased from 10mm/s to 40mm/s, and the repetition frequency had little effect on the depth of texture. It was possible to select an optimum combination of laser processing parameters that obtain different depths of texture without decreasing the surface quality of texture.