激光诱导氧化铝陶瓷刀具的表面浸润性  

Surface Wettability of Laser-Induced Al_2O_3 Ceramic Tools

作　　者：杨奇彪[1] 肖晨光[1] 陈中培 陈列[1] 娄德元[1] 陶青 郑重[1] 翟中生[1] 刘顿[1] Bennett Peter 

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068

出　　处：《激光与光电子学进展》2017年第10期263-268,共6页Laser & Optoelectronics Progress

基　　金：国家科技支撑计划(2015BAF20B03);国家级重点实验室项目(2016001);湖北省教育厅项目(B2016051);武汉青年科技项目(2016070204010123)

摘　　要：利用飞秒激光处理陶瓷刀具表面,研究了脉冲能量和光斑重合度对其表面浸润性的影响。通过测定激光处理后的氧化铝陶瓷刀片表面的接触角来观察其浸润性。实验结果表明,飞秒激光可以改变陶瓷材料表面的润湿性能,通过选择合适的激光能量密度和光斑重合度,可以制备出超亲水表面和超亲水基切削液的表面。水基切削液在激光处理过的表面上的润湿速度与接触角呈指数衰减关系。The effects of pulse energy and spot overlap ratio on the wettability of ceramic tools processed by femtosecond lasers are investigated. The wettability of the alumina ceramic tools after laser treatment is investigated by measuring the contact angles. The experimental results show that the femtosecond laser can change the wettability of ceramic material surfaces. The superhydrophilic surfaces and the superhydrophilic-based cutting fluid surfaces can be prepared if suitable laser energy density and spot overlap ratio are chosen. The wetting speed of water based cutting fluid on the laser-processed surfaces is exponentially decaying with the contact angle.

关 键 词：激光技术 浸润性 飞秒激光 陶瓷刀具 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]