To address the limitations of existing surface cleaning technologies in shipyards, various studies are underway to apply the laser cleaning process, which uses a laser as a heat source, to pretreatment for painting and welding. Accordingly, this study conducted a cleaning experiment that uses a low power Q-switching fiber laser to remove the primer and oxide layer from the surface of steel for shipbuilding. To enhance the field applicability, this study derived the optimal laser cleaning process parameters that satisfy pretreatment standards. The main process parameters include scan speed and energy density. The most thoroughly cleaned surface was obtained at a scan speed corresponding to laser beam overlap rate of 20 % and an energy density of 10.5 J/cm², and the working time was also significantly reduced. Therefore, this study is expected to be highly useful as important data for applying laser cleaning technology, which is receiving greater attention across many industries in addition to the shipbuilding and marine industry.

为了解决船厂现有表面清洁技术的局限性，正在进行各种研究，以将使用激光作为热源的激光清洁工艺应用于喷漆和焊接的预处理。因此，本研究进行了清洁实验，该实验使用低功率调Q光纤激光器从造船用钢表面去除底漆和氧化层。为了提高现场适用性，本研究得出了满足预处理标准的最佳激光清洗工艺参数。主要工艺参数包括扫描速度和能量密度。在对应于20％的激光束重叠率和10.5 J / cm ²的能量密度的扫描速度下获得了最彻底清洁的表面，工作时间也大大减少。因此，预期该研究作为应用激光清洁技术的重要数据将非常有用，该技术在造船和海洋工业之外的许多行业中都得到了越来越多的关注。