超快激光工艺参数对不锈钢表面着色的影响

发布时间：2018-03-11 01:20

本文选题：激光制造　切入点：激光加工参数　出处：《中国激光》2017年03期 　论文类型：期刊论文

【摘要】：利用皮秒激光在304不锈钢上进行表面着色试验研究。分析了皮秒激光对不锈钢表面着色的机理,建立了表面色彩的模型。分别试验研究了扫描线间距、扫描速度和脉冲能量等激光工艺参数对着色效果的影响。研究结果表明,改变线间距、扫描速度和功率均能对着色效果产生显著影响,在扫描速度90~300μm/s,扫描线间距0.001~0.01mm,单脉冲能量60~140mJ/cm~2的参数范围内能得到较好的色彩,而且三者对着色有近似的影响效果。在试验基础上,获得了皮秒激光参数与CIE L*a*b*色彩模型之间的关系。最后对着色后的试样进行了颜色老化对比试验。老化对比试验表明,不同老化时间下的激光着色试样的色差值ΔE均很小,说明各试样颜色接近,耐老化效果较好。
[Abstract]:The surface coloring of 304 stainless steel by picosecond laser was studied. The mechanism of surface coloration of stainless steel by picosecond laser was analyzed, and the model of surface color was established. The effects of laser parameters such as scanning speed and pulse energy on the coloring effect are studied. The results show that changing the line spacing, scanning speed and power can significantly affect the coloring effect. A good color can be obtained within the parameters of the scanning speed of 90 渭 m / s, the scan line spacing of 0.001 ~ 0.01mm, the single pulse energy of 60140mJ / cm ~ (-2), and the effect of the three factors on the coloring. The relationship between the parameters of picosecond laser and the color model of CIE has been obtained. Finally, the color aging contrast tests of the colored samples have been carried out. The results show that the color difference 螖 E of the laser colored samples at different aging times is very small. The results show that the color of each sample is close and the effect of aging resistance is better.
【作者单位】：五邑大学机电工程学院;广东省摩托车先进设计与制造工程技术研究中心;
【基金】：广东省自然科学基金(S2013010008735)
【分类号】：TG177;TN249

【相似文献】