应用激光, 2019, 39 (2): 256, 网络出版: 2019-06-10
301不锈钢焊后氧化物激光清洗工艺研究
Laser Cleaning Process of Post-weld Oxide on 301 Stainless Steel
摘要
针对性能优良的不锈钢车体电弧焊后表面氧化物的清理需求,研究了采用光纤激光器对不锈钢焊后表面进行激光清洗的工艺、机理及清洗后表面元素测试。通过不同工艺参数的对比实验,分别研究了激光功率、激光频率和清洗次数对清洗效果的影响,并提出了不锈钢表面焊后氧化物可能的两种剥离机制。通过对分别采用激光清洗和机械磨刷两种清理方式清理后的不锈钢表面进行测试,并将测试结果进行对比分析发现,激光清洗后的表面清洁度要优于传统的机械磨刷清理后的表面,该发现有助于激光清洗在不锈钢表面污物清理应用的大范围推广。
Abstract
Aiming at the cleaning requirements of surface oxide after arc welding of stainless steel car body with excellent performance. The process, mechanism and surface element test after laser cleaning of stainless steel post-weld surface by fiber laser were studied. The effects of laser power, laser frequency and cleaning times on the cleaning process were investigated by comparative experiments with different process parameters, and two possible stripping mechanisms of post-weld oxide on stainless steel surface were proposed. The stainless steel surface after laser cleaning and mechanical grinding was tested. Comparing the results, it was found that the surface cleanliness after laser cleaning was superior than that of the traditional mechanical grinding. This discovery contributes to the widespread promotion of laser cleaning in stainless steel surface dirt cleaning applications.
李刚卿, 赵延强, 刘永刚, 郑凯, 胡崇镜, 王春明. 301不锈钢焊后氧化物激光清洗工艺研究[J]. 应用激光, 2019, 39(2): 256. Li Gangqing, Zhao Yanqiang, Liu Yonggang, Zheng Kai, Hu Chongjing, Wang Chunming. Laser Cleaning Process of Post-weld Oxide on 301 Stainless Steel[J]. APPLIED LASER, 2019, 39(2): 256.