激光加热固化设备关键技术研究
发布时间：2019-03-13 12:20
【摘要】：激光加热固化设备由激光加热固化装置和纤维缠绕成型装置共同构成,在碳纤维复合材料缠绕的同时利用半导体激光器对复合材料进行加热,能够使复合材料缠绕更加均匀,与其他加热方式相比较,激光加热固化时间更短,固化效果更好,装置更简单。论文综述了激光加热固化技术和纤维缠绕成型技术的国内外现状,详细介绍了碳纤维和环氧树脂的特点及性能,阐述了碳纤维-环氧树脂复合材料缠绕成型工艺及其特点。应用ANSYS有限元分析软件对复合材料加热固化过程进行温度场分布的计算模拟,获得了动态缠绕过程中复合材料的温度场分布。提出了一种回转体缠绕的激光加热固化实验研究方案,针对半导体激光器的输出的光场分布特性,应用ZEMAX软件仿真模拟了含有三个bar条的半导体激光器阵列的传输特性,采用三个微柱面镜对半导体激光阵列的快轴整形获得了尺寸为1.2mm×10mm的辐照光斑;设计了一维运动与一维回转相结合的二维运动工作台及其运动控制单元,通过上位机来控制二维运动台的运动速度;采用张力控制装置实现复合材料带的预紧;采用红外测温技术实现辐照的复合材料表面的温度测量,通过功率反馈控制电路实现激光辐照功率的调节,搭建了激光加热固化实验装置。在辐照功率为60W时,复合材料表面加热温度为200℃±10℃,经测定复合材料的剪切强度达到了60MPa。
[Abstract]:The laser heating and curing equipment is composed of a laser heating curing device and a filament winding molding device. While the carbon fiber composite material is wound, a semiconductor laser is used to heat the composite material, which can make the composite winding more uniform. Compared with other heating methods, laser heating has shorter curing time, better curing effect and simpler device. In this paper, the present situation of laser heating curing technology and filament winding molding technology at home and abroad is reviewed. The characteristics and properties of carbon fiber and epoxy resin are introduced in detail, and the winding process and characteristics of carbon fiber-epoxy resin composites are described in detail. The temperature distribution of composites during heating and curing process was simulated by using ANSYS finite element analysis software, and the temperature distribution of composites during dynamic winding was obtained. An experimental scheme of laser heating solidification with rotating body winding is proposed. Aiming at the light field distribution of semiconductor laser output, the transmission characteristics of semiconductor laser array with three bar bars are simulated by ZEMAX software. Three microcylindrical mirrors were used to shape the fast axis of the semiconductor laser array and the irradiated spot with the size of 1.2mm 脳 10mm was obtained. A two-dimensional moving table combined with one-dimensional motion and one-dimensional rotation and its motion control unit are designed to control the motion speed of the two-dimensional moving table through the upper computer, and the tension control device is used to realize the pre-tightening of the composite belt. The infrared temperature measurement technique was used to measure the surface temperature of irradiated composite materials. The laser irradiation power was adjusted by power feedback control circuit, and the experimental equipment of laser heating and curing was set up. When the irradiation power is 60 W, the surface heating temperature of the composite is 200 鈩，
本文编号：2439383
[Abstract]:The laser heating and curing equipment is composed of a laser heating curing device and a filament winding molding device. While the carbon fiber composite material is wound, a semiconductor laser is used to heat the composite material, which can make the composite winding more uniform. Compared with other heating methods, laser heating has shorter curing time, better curing effect and simpler device. In this paper, the present situation of laser heating curing technology and filament winding molding technology at home and abroad is reviewed. The characteristics and properties of carbon fiber and epoxy resin are introduced in detail, and the winding process and characteristics of carbon fiber-epoxy resin composites are described in detail. The temperature distribution of composites during heating and curing process was simulated by using ANSYS finite element analysis software, and the temperature distribution of composites during dynamic winding was obtained. An experimental scheme of laser heating solidification with rotating body winding is proposed. Aiming at the light field distribution of semiconductor laser output, the transmission characteristics of semiconductor laser array with three bar bars are simulated by ZEMAX software. Three microcylindrical mirrors were used to shape the fast axis of the semiconductor laser array and the irradiated spot with the size of 1.2mm 脳 10mm was obtained. A two-dimensional moving table combined with one-dimensional motion and one-dimensional rotation and its motion control unit are designed to control the motion speed of the two-dimensional moving table through the upper computer, and the tension control device is used to realize the pre-tightening of the composite belt. The infrared temperature measurement technique was used to measure the surface temperature of irradiated composite materials. The laser irradiation power was adjusted by power feedback control circuit, and the experimental equipment of laser heating and curing was set up. When the irradiation power is 60 W, the surface heating temperature of the composite is 200 鈩，
本文编号：2439383
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