AFRP激光-铣削组合加工及其工艺参数优化研究  

Research on AFRP Laser-milling Combined Machining Technology and Parameters Optimization

作　　者：李文毅 苏飞 郑雷[2] 陈冰 LI Wenyi;SU Fei;ZHENG Lei;CHEN Bing(Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology,Xiangtan 411201;School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051)

机构地区：[1]湖南科技大学机电工程学院难加工材料高效精密加工湖南省重点实验室,湘潭411201 [2]盐城工学院机械工程学院,盐城224051

出　　处：《宇航材料工艺》2023年第5期68-77,共10页Aerospace Materials & Technology

基　　金：国家自然科学基金(52175400,51805164);湖南省自然科学基金(2021JJ30263);江苏省自然科学基金(BK20201474);湖南省教育厅资助科研项目(18A182)。

摘　　要：针对芳纶纤维增强复合材料(AFRP)加工中极易出现抽丝拉毛、烧蚀等问题,提出采用激光-铣削组合加工的工艺方法对AFRP进行试验研究,优化AFRP激光-铣削组合加工工艺参数。试验表明:与铣削加工相比,激光-铣削组合加工的切削温度更低,切削力以及毛刺因子更小,且在加工中切削力波动幅度小,铣削平稳;AFRP激光-铣削组合加工中的最佳激光工艺参数为:激光功率P=20 W,扫描速度v=3 mm/s,脉冲宽度Lf=60 ns,重复频率f=50 kHz;最佳铣削工艺参数为:主轴转速n=2000 r/min,进给速度vf=105 mm/min,切削深度ap=0.5 mm。For the problems such as fiber burrs and ablation in the processing of aramid fiber reinforced composites(AFRP),a laser-milling combined processing method was proposed to conduct experimental research on AFRP.The parameters of AFRP laser-milling combined processing were optimized.The results show that compared with the milling processing,the temperature of laser-milling combined processing is lower,the milling force and the burr factor are smaller,the milling force fluctuation is smaller,the milling is more stable.The optimal laser processing parameters of AFRP laser-milling are as follows:laser power P=20 W,scanning speed v=3 mm/s,pulse width Lf=60 ns,repetition frequency f=50 kHz.The optimal milling process parameters are as follows:spindle speed n=2000 r/min,feed speed vf=105 mm/min,cutting depth ap=0.5 mm.

关 键 词：芳纶纤维增强复合材料 复合加工 切削力 切削温度 激光加工 

分 类 号：TQ327[化学工程—合成树脂塑料工业]