中国机械工程2025，Vol.36Issue(10)：2207-2214,8.DOI:10.3969/j.issn.1004-132X.2025.10.006
干气密封动环表面的螺旋槽纳秒激光制备
Nanosecond Laser Machining of Spiral Grooves of Dry Gas Seal Rotational Ring Surfaces
摘要
Abstract
An experimental study on the nanosecond laser processing of the spiral groove on the dry gas seal rotational ring surfaces made of GH4169 was carried out.Orthogonal tests and one-factor methods were utilized to reveal the effects of laser power,scanning speed,filling spacing and repetition frequency on the spiral groove depth and bottom roughness Ra,and to determine the appropriate combination of laser processing parameters.The results show that the greatest influence on the depth of the spiral grooves on the surfaces of GH4169 alloy is the laser power,followed by the repetition frequency and the scanning speed,and the greatest influence on the roughness of the groove bottoms is the scanning speed,followed by the repetition frequency and the scanning spacing.With the laser power of 18 W,scanning speed of 40 mm/s,fill spacing of 0.005 mm,and repetition frequency of 50 kHz,the spiral grooves on the machined rotational ring surfaces is able to meet the machining requirements of groove depth of 7 μm,and groove bot-tom roughness of Ra≤0.8 μm.关键词
纳秒激光加工/GH4169合金/干气密封/表面螺旋槽/表面粗糙度Key words
nanosecond laser machining/GH4169 alloy/dry gas seal/surface spiral groove/surface roughness分类
机械工程引用本文复制引用
李文倩,刘战强,赵金富,王兵,蔡玉奎..干气密封动环表面的螺旋槽纳秒激光制备[J].中国机械工程,2025,36(10):2207-2214,8.基金项目
国家自然科学基金重大研究计划(92360311) （92360311）
国家自然科学基金(52275444,91860207,52205482) （52275444,91860207,52205482）
山东省重点研发计划(2020CXGC010204) （2020CXGC010204）
山东省青年自然科学基金(ZR202111150191) （ZR202111150191）
