中国机械工程 ›› 2025, Vol. 36 ›› Issue (10): 2207-2214.DOI: 10.3969/j.issn.1004-132X.2025.10.006

• 国家重点科技项目研究进展专栏 • 上一篇    

干气密封动环表面的螺旋槽纳秒激光制备

李文倩1,2,3,4(), 刘战强1,2,4,5(), 赵金富1,2,3,4, 王兵1,2,3,4, 蔡玉奎1,2,3,4   

  1. 1.山东大学机械工程学院, 济南, 250061
    2.山东大学金属成形先进装备与技术国家重点实验室, 济南, 250061
    3.高效清洁机械制造教育部重点实验室, 济南, 250061
    4.国家机械工程实验教学示范中心, 济南, 250061
    5.山东大学机电与信息工程学院, 威海, 264209
  • 收稿日期:2024-06-05 出版日期:2025-10-25 发布日期:2025-11-05
  • 通讯作者: 刘战强
  • 作者简介:李文倩,女,2002年生,硕士研究生。研究方向为长寿命密封表面的设计与加工。E-mail:sduliwenqian@mail.sdu.edu.cn
    刘战强*(通信作者),男,1969年生,教授、博士研究生导师。研究方向为先进加工理论与装备技术,制造科学与刀具技术,结构表面功能化设计与加工,增减材复合加工工艺与装备,加工过程监控与智能制造。 E-mail:melius@sdu.edu.cn
  • 基金资助:
    国家自然科学基金重大研究计划(92360311);国家自然科学基金(52275444);国家自然科学基金(91860207);国家自然科学基金(52205482);山东省重点研发计划(2020CXGC010204);山东省青年自然科学基金(ZR202111150191)

Nanosecond Laser Machining of Spiral Grooves of Dry Gas Seal Rotational Ring Surfaces

Wenqian LI1,2,3,4(), Zhanqiang LIU1,2,4,5(), Jinfu ZHAO1,2,3,4, Bing WANG1,2,3,4, Yukui CAI1,2,3,4   

  1. 1.School of Mechanical Engineering,Shandong University,Jinan,250061
    2.State Key Laboratory of Advanced Equipment and Technology for Metal Forming,Shandong University,Jinan,250061
    3.Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education,Jinan,250061
    4.Key National Demonstration Center for Experimental Mechanical Engineering Education,Jinan,250061
    5.School of Mechanical,Electrical & Information Engineering,Shandong University,Weihai,Shandong,264209
  • Received:2024-06-05 Online:2025-10-25 Published:2025-11-05
  • Contact: Zhanqiang LIU

摘要:

针对GH4169材质的干气密封动环表面开展了纳秒激光加工螺旋槽工艺的试验研究。利用正交试验和单因素法,揭示激光功率、扫描速度、填充间距和重复频率对螺旋槽槽深和槽底粗糙度Ra的影响规律,确定合适的激光加工参数组合。结果表明,对GH4169合金表面螺旋槽深度影响最大的是激光功率,其次为重复频率以及扫描速度,对槽底粗糙度影响最大的是扫描速度,其次为重复频率和填充间距。采用激光功率18 W、扫描速度40 mm/s、填充间距0.005 mm、重复频率50 kHz时,加工后动环表面螺旋槽能够满足槽深7 μm、槽底粗糙度Ra≤0.8 μm的加工需求。

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

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 bottom roughness of Ra≤0.8 μm.

Key words: nanosecond laser machining, GH4169 alloy, dry gas seal, surface spiral groove, surface roughness

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