光电工程, 2017, 44 (12): 1217, 网络出版: 2018-01-17
激光功率对不锈钢表面清洗效果影响的研究
Effect of power on laser cleaning result of stainless steel surface
激光清洗 不锈钢氧化层 激光功率 粗糙度 清洗厚度 laser cleaning stainless steel oxide layer laser power roughness cleaning thickness
摘要
利用激光清洗技术对不锈钢表面进行清洗试验,研究不同激光功率(300 W、400 W、500 W)对清洗效果的影响。通过SEM和EDS分析不锈钢表面清洗前后的表面形貌及成分分布;利用白光干涉仪检测不锈钢表面粗糙度及清洗厚度。结果表明,随着激光功率的增加,不锈钢表面氧化物逐渐分解剥落,清洗厚度不断加深,在500 W时达到50 μm,并且造成基体部分损伤;粗糙度值先降低后增加,在400 W时达到最低值0.38 μm。激光清洗的清洗阈值近似为3.96×103W/cm2,基体损伤阈值在5.52×103W/cm2左右,不锈钢表面氧化层在400 W时达到最佳激光清洗效果。
Abstract
Laser cleaning technology was used to clean the surface of stainless steel, and the influence of dif-ferent laser power (300 W, 400 W, 500 W) on cleaning effect was studied. The surface morphology and composi-tion distribution of stainless steel were analyzed by SEM and EDS. The surface roughness and cleaning thick-ness were detected by White Light Interferometer. The results show that, with the increase of laser power, the ox-ide of stainless steel decomposes and flakes gradually, and the cleaning thickness keeps deepening and reach-es 50 μm at 500 W, which causes partial damage to the matrix. The roughness value decreases firstly and then increases. It reaches a minimum value of 0.38 μm at 400 W. Laser cleaning threshold is approximately 3.96×103W/cm2, and damage threshold is about 5.52×103W/cm2. The best laser cleaning effect of stainless steel is ob-tained when the power is 400 W.
陈国星, 陆海峰, 赵滢, 张惠炜, 魏少翀, 季骅, 吴树辉, 史一岭. 激光功率对不锈钢表面清洗效果影响的研究[J]. 光电工程, 2017, 44(12): 1217. Guoxing Chen, Haifeng Lu, Ying Zhao, Huiwei Zhang, Shaochong Wei, Hua Ji, Shuhui Wu, Yiling Shi. Effect of power on laser cleaning result of stainless steel surface[J]. Opto-Electronic Engineering, 2017, 44(12): 1217.