摘要
为提高关节轴承润滑衬垫的切割加工精度,提出将激光气化切割技术应用于生产过程中,系统研究了激光切割衬垫的工艺步骤,主要内容包括衬垫的排版和定位方法、3种典型自润滑衬垫的激光切割参数以及衬垫切割后的检测要求,通过借助体式放大镜分析了衬垫切割后的缝隙、深度与不同参数之间的变化规律。最后,将激光切割的衬垫用于关节轴承进行成品验证。结果表明,使用计算机确定激光切割路线和排版具有排列紧凑、可视化方便、调整灵活、可重复调用、节约工时等优点;激光切割定位简易便捷;激光切割的效率与激光频率、激光走速负相关,与占空比正相关。得到衬垫激光切割的最佳参数:激光频率为20~30 kHz,激光走速范围为150~200 mm/s,占空比为50%,循环次数为满足质量要求且完全脱落的最小次数。
In order to improve the machining accuracy of lubricating pad used in joint bearings, this paper put forward the application of laser vaporization cutting technology in the production process, and systematically studied the process steps of lines. The main contents included: the graphical layout and location of liners, the laser cutting parameters of three typical self-lubricating liners, and the detection requirements. The cutting gap changes and depth changes were analyzed with the help of stereomicroscope. Finally, the self-lubrication liners were used on spherical plain bearings to verify the reliability. The results showed that the layout of laser cutting routes by using computer is compact, the visualization is more convenient and flexible, and even could be used repeatedly. Laser cutting positioning is simple and convenient. The cutting effect is negatively correlated with the laser frequency and laser traverse speed, and positively correlated with the duty cycle. The best parameters for liner cutting were obtained: the laser frequency is 20~30 kHz, the laser traverse speed range is between 150 mm/s and 200 mm/s, the duty cycle is 50%, and cutting times is the number of the liner which are just falling off.
作者
葛丽婧
顾川涯
王玲奇
Ge Lijing;Gu Chuanya;Wang Lingqi(Shanghai Bearing Technology Research Institute,Shanghai 201800,China)
出处
《应用激光》
CSCD
北大核心
2022年第9期58-65,共8页
Applied Laser
关键词
激光切割
自润滑衬垫
关节轴承
最佳参数
laser cutting
fabric self-lubricating liner
spherical plain bearing
optimum parameter
