| 引用本文: | 吴勇华,杨保平,刘忠念,黄雪雄.皮秒光纤激光器诱导不锈钢表面着色工艺[J].中国表面工程,2016,29(5):80~86 |
| WU Yong-hua,YANG Bao-ping,LIU Zhong-nian,HUANG Xue-xiong.Surface Coloring Processing Induced via Irradiation of Picosecond Fiber Laser for Stainless Steel[J].China Surface Engineering,2016,29(5):80~86 |
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| 摘要: |
| 利用皮秒激光在304不锈钢上进行着色试验研究，分析了皮秒激光对不锈钢表面着色的周期性表面条纹结构机理，分别研究了扫描线间距、激光功率、扫描速度和离焦量等激光工艺参数对着色效果的影响。结果表明：改变扫描速度、线间距和功率均能对着色效果产生很大影响，最佳速度为90~300 mm/s，最佳线间距为0.003~0.01 mm，功率为30%~70%，并且三者对着色有近似的影响效果；而改变离焦量对着色效果的影响没有线间距、功率和速度三者显著。在此基础上，获得了红、橙、黄、绿、青、蓝、紫对应较为合理的皮秒光纤激光加工参数。腐蚀性试验表明，未着色试样的腐蚀率是着色试样的3倍。 |
| 关键词: 激光着色 皮秒光纤激光器 304不锈钢 条纹 激光加工参数 |
| DOI：10.11933/j.issn.1007-9289.2016.05.010 |
| 分类号: |
| 基金项目:广东省自然科学基金（S2012010008735） |
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| Surface Coloring Processing Induced via Irradiation of Picosecond Fiber Laser for Stainless Steel |
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WU Yong-hua1, YANG Bao-ping1, LIU Zhong-nian2, HUANG Xue-xiong3
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1.School of Electromechanical Engineering, Wuyi University, Jiangmen 529020, Guangdong;2.School of Information and Optoelectronic, South China Normal University, Guangzhou 510006;3.Guangdong Liangze Laser Technology Co., Ltd., Zhongshan 528400, Guangdong
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| Abstract: |
| To acquire the coloring technological methods on metal surface, the experiment of coloring on 304 stainless steel was successfully conducted by using picosecond fiber laser. The steel surface structure of periodic micro ripples induced with picosecond laser irradiation was studied and discussed, its mechanism of the surface coloring using picosecond laser was also considered, and the influences of the laser process parameters such as line spacing of the laser beam, laser power, scanning speed of the beam and the defocus amount on the coloring effect of stainless steel was then analyzed and studied in detail. Results show that changing the scan pitch of line, scan speed and laser power has a significant impact on the coloring effect, and the optimal parameters are at speed of 90 to 300 mm/s, at line gap of 0.003 to 0.01 mm, and at a range of 30% to 70% with full energy. Besides, The effect of three parameters on coloring is similar. Furthermore, its coloring effect of changing defocus distance is slight compared with the line spacing, power and speed. Based on this, reasonable laser processing parameters are determined, and the corresponding laser coloring parameters of red, orange, yellow, green, cyan, blue, and purple are obtained. The corrosion experimental results show that the corrosion rate of uncolored samples is three times that of colored samples. |
| Key words: laser coloring picosecond fiber laser 304 stainless steel ripple laser process parameters |
