摘要
依次将激光波长设定在523、785和1064 nm这3种条件下,对碳纤维复合材料(CFRP)开展切割测试,计算得到切缝的宽度与深度尺寸,并对试样进行微观组织表征,对CFRP激光加工过程的作用机理进行分析。研究结果表明:经比较不同波长,523 nm激光的波长更短,能够产生很高能量的单光子,获得了最平整的切割截面,表现出最优的切割性能。随着扫描速度的提高,形成了更小的热影响范围,降低单位面积的注入能量。提高激光功率后,上切缝宽度与深度增大,促进了侧向与纵向发生更大程度的燃烧,形成更宽与更深的切缝,激光对材料造成了更强烈的作用,扩大了热损伤区。
In this paper,the laser wavelength was set at 523 nm,785 nm and 1064 nm,and then the carbon fiber reinforced plastic(CFRP)cutting test was carried out.The width,depth and taper of the slit and the width of the heat affected zone in the surface region were calculated.The samples were characterized by microstructure,and the mechanism of CFRP laser processing was analyzed.The results show that compared with different wavelengths,UV laser UV laser wavelength is shorter,can produce very high energy single photon,get the most flat cutting cross section,show the best cutting performance.As the scanning speed increases,a smaller heat affected area is formed,reducing the injected energy per unit area and forming a heat affected area with a smaller width.After increasing the laser power,the width and depth of the upper slit increase,promote the lateral and longitudinal combustion of a greater degree,the formation of wider and deeper slit,laser has a stronger effect on the material,expand the thermal damage area.
作者
邓彦波
王峰
李建国
DENG Yanbo;WANG Feng;LI Jianguo(College of Intelligent Manufacturing and Civil Engineering,Yongzhou Vocational and Technical College,Yongzhou 425000,Hunan,China;School of Mechanical Engineering,Changsha University of Science and Technology,Changsha 410114,Hunan,China;Hunan Sante Machinery Manufacturing Co.,Ltd.,Changsha 410114,Hunan,China)
出处
《中国工程机械学报》
北大核心
2023年第4期343-347,共5页
Chinese Journal of Construction Machinery
基金
湖南省教育厅科学研究资助项目(21C1514)。
