针对钛轧板表面致密氧化物薄层难以去除的问题,采用平均功率为200 W的激光清洗机开展对钛轧板表面的氧化物去除研究。基于激光烧蚀理论激光作用下金属氧化物的温升规律,确定提升激光单脉冲功率密度为氧化物薄层激光去除问题的有效解决方案。结合不同激光清洗工艺下钛轧板表面氧化物的清洗效果及EDS分析结果,可知在激光功率密度达到4×10 8 W/cm 2时,激光清洗可有效去除钛轧板表面的氧化物,且对材料的拉伸性能没有明显影响。

In allusion to the difficult-to-remove oxide layers on a titanium rolled plate surface, a process for laser cleaning the oxide layer on a titanium rolled plate surface is investigated using a laser cleaning machine with an average power of 200 W. Based on the law of the temperature rise of the metal oxide under the action of the laser, raising the laser single-pulse power density is proposed as an effective solution to the problem of laser removal of the oxide layers. Combined with the results of energy-dispersive X-ray spectroscopic analysis and the cleaning effect of the oxides on the surface of titanium rolled plate under different laser cleaning processes, the oxide on the surface of the titanium rolled plate is shown to be effectively removed using laser cleaning when the laser power density reaches 4×10 ⁸ W/cm ². Noticeably, this process does not affect the tensile properties of the material.