摘要
对纳秒激光加工316L不锈钢沟槽结构进行了系统研究,以激光功率、重复频率、扫描速度及路径间隔为变量开展正交试验,将沟槽侧壁锥度及加工深度作为正交试验结果的评价指标。结果表明:激光功率是影响侧壁锥度最主要的因素,扫描速度对深度影响最显著,而重复频率对二者影响皆不显著。利用最佳参数:激光功率16W、扫描速度500mm/s、路径间隔0.01mm、重复频率10kHz,可成功加工出宽1mm,平均深0.92mm,侧壁平均锥度为78.56°的阵列微沟槽结构。
A systematic study was conducted on nanosecond laser machining of 316L stainless steel groove structures,utilizing variables such as laser power,repetition frequency,scanning speed,and path interval in an orthogonal experiment.The evaluation criteria for the experiment's outcomes were the taper of the groove sidewalls and the machining depth.The findings indicate that laser power is the primary factor affecting the sidewall taper,while scanning speed has the most significant impact on depth.The repetition frequency,however,showed negligible effects on both parameters.Using optimal settings of 16W laser power,500mm/s scanning speed,0.01mm path interval,and 10kHz repetition frequency,an array of micro-groove structures was successfully fabricated,featuring a width of 1mm,an average depth of 0.92mm,and an average sidewall taper of 78.56°.
作者
袁健
何斌
张俊飞
陈国炎
张锁荣
YUAN Jian;HE Bin;ZHANG Junfei;CHEN Guoyan;ZHANG Suorong(Jiangsu University of Technology,Changzhou 213001,Jiangsu,China)
基金
江苏省高等学校基础科学(自然科学)研究面上项目(23KJB460012)
常州市应用基础研究计划(CJ20235044)。
关键词
纳秒激光
316L不锈钢
微结构
侧壁锥度
nanosecond laser
316L stainless steel
microstructure
sidewall taper
