王蔚,李晓旭,刘伟军,李相锦,邢飞,周宪民.光斑搭接率对激光清洗铝合金阳极氧化膜表面质量及耐磨性能的影响[J].表面技术,2024,53(17):112-125.
WANG Wei,LI Xiaoxu,LIU Weijun,LI Xiangjin,XING Fei,ZHOU Xianmin.Effect of Spot Overlap Rate on Surface Quality and Wear Resistance of Laser Cleaned Aluminum Alloy Anodic Oxide Film[J].Surface Technology,2024,53(17):112-125 |
| 光斑搭接率对激光清洗铝合金阳极氧化膜表面质量及耐磨性能的影响 |
| Effect of Spot Overlap Rate on Surface Quality and Wear Resistance of Laser Cleaned Aluminum Alloy Anodic Oxide Film |
| 投稿时间：2023-09-19 修订日期：2024-01-19 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.17.010 |
| 中文关键词: 激光清洗 光斑搭接率 阳极氧化膜 表面质量 耐磨性 |
| 英文关键词:laser cleaning spot overlap rate anodic oxide film surface quality wear resistance |
| 基金项目:国家重点研发计划(2022YFB4602202);国家自然科学基金面上项目(52375456) |
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| Author | Institution |
| WANG Wei | School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China |
| LI Xiaoxu | School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China |
| LIU Weijun | School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China |
| LI Xiangjin | School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China |
| XING Fei | School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China |
| ZHOU Xianmin | Shenyang Pakalaijing Co., Ltd., Shenyang 110042, China |
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| 中文摘要: |
| 目的 研究激光清洗铝合金表面阳极氧化膜后，光斑搭接率对基材表面质量及磨损性能的影响规律。方法 采用纳秒脉冲激光器清洗7075铝合金表面的阳极氧化膜，分析不同激光光斑搭接率(20%~60%)对材料表面形貌、元素含量、表面粗糙度、显微硬度、残余应力和耐磨性的影响，通过研究激光清洗后7075铝合金的表面特征，探究激光光斑搭接率对铝合金表面耐磨性的影响规律。结果 随着光斑搭接率的减小，被清洗表面的显微硬度、粗糙度均呈现先减少后增大的趋势，残余应力呈现下降趋势。当光斑搭接率为46.7%~60%时,试样表面存在烧蚀形成的凹坑，导致粗糙度增大。当光斑搭接率为20%时，氧元素的含量较高，氧化膜去除不完整，达不到清洗要求。当激光光斑搭接率为33.3%时，激光清洗能够有效去除7075铝合金表面的阳极氧化膜，并会形成粗糙度较小、显微硬度较大的熔融热氧化层。结论 经不同光斑搭接率清洗后，清洗表面磨损机制主要以磨粒磨损和剥层磨损为主，在光斑搭接率为33.3%时，表面清洗效果较好，同时清洗后的表面生成的熔融热氧化层可以提高耐磨性，此时样件表面磨损量达到最低值，这为铝合金清洗后重新使用提供了可行性。 |
| 英文摘要: |
| The purpose of laser cleaning to remove the oxide film is to completely remove the anodic oxide film on the surface of the 7075 aluminum alloy substrate without damaging it. The wear resistance of the 7075 aluminum alloy substrate surface after laser cleaning is guaranteed to be no weaker than that of the original substrate, meeting the actual use of the material. Therefore, the influence of spot overlap rate on the surface quality and wear performance of the substrate after laser cleaning of the anodized film on the surface of aluminum alloy is studied. |
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