激光剥离EA4T钢车轴涂层研究  

Study on Paint Layer Removal from EA4T Steel Axle by Continuous Wave Laser

作　　者：杜宏昱 成健 李子文 丰凯 DU Hongyu;CHENG Jian;LI Ziwen;FENG Kai(School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,China;Wuhan Binhu Electronic Limited Liability Company,Wuhan 430068,China)

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068 [2]武汉滨湖电子有限责任公司,湖北武汉430068

出　　处：《热加工工艺》2024年第8期135-141,共7页Hot Working Technology

基　　金：湖北省自然科学基金项目(2019CFB509);航空科学基金(201818X5002);湖北工业大学高层次人才基金项目(BSQD2019001);装备预先研究基金项目(6141C25)。

摘　　要：对光纤激光器剥离EA4T钢车轴表面涂层进行实验研究,对激光剥离涂层的作用机理进行分析。研究功率密度、扫描速度、填充间距等对剥离质量、效率的影响规律。结果表明,进行两次剥离,第一次功率密度为2.25×10^(6)W/cm^(2)、扫描速度为16 m/s、填充间距为0.1 mm。第二次功率密度2.25×10^(6)W/cm^(2)、扫描速度为16 m/s、填充间距为0.2 mm,效率为0.8 m^(2)/h。第一次剥离有油漆残留,第二次剥离可有效剥离油漆涂层,但会使EA4T钢表面产生微熔融,验证并不影响其力学性能。The experimental study on the fiber laser stripping surface coating of EA4T steel axle was carried out.The mechanism of laser peeling was analyzed.The effects of laser power density,scanning speed,filling spacing and other parameters on the peel quality and efficiency were studied.The results show that laser overscan twice is suitable:for the first overscan,the power density is 2.25×10^(6) W/cm^(2),the scanning speed is 16 m/s,and the filling spacing is 0.1 mm;for the second overscan,the laser power density is 2.25×10^(6 )W/cm^(2),the scanning speed is 16 m/s,the filling spacing is 0.2 mm,and the efficiency is 0.8 m^(2)/h.After the first laser overscan,there is some paint residue left;and then the second overscan can effectively peel the paint coating.It would result in the EA4T steel surface micro-melting;however,its main mechanical properties are not obviously affected.

关 键 词：激光剥离 激光参数 EA4T钢 表面处理 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TG142.33[金属学及工艺—金属学]