锻压技术

纤维增强金属层板成形固化一体化工艺

英文标题：Integration process on forming and curing of fiber-reinforced metal laminates

单位：北京航空航天大学航空工业成都飞机工业（集团）有限责任公司中国人民解放军93175部队

分类号：TB333

出版年,卷(期):页码：2022,47(7):59-67

摘要：

针对传统成形方式成形纤维增强金属层板后出现的缺陷，基于充液成形技术，提出了纤维增强金属层板成形固化一体化技术。通过设计相关实验探究成形固化一体化技术中加载外力和成形温度参数对成形质量的影响，期望成形出质量较高的盒形件，同时分析了层板各层变形不一致的现象和层间树脂性质之间的关系。结果表明：降低成形速度、采用阶梯动态的外力加载方式可以提高层板的成形性能。通过对整个流程的工艺温度进行分段控制得出，成形温度控制在60 ℃、固化温度控制在120 ℃的条件下，可减少树脂的溢出，进而得到较好的层间质量。通过对纤维增强金属层板盒形件的成形特征和层间协调变形规律的研究，对成形工艺进行了调整，最终获得了质量良好的零件。结果表明，成形固化一体化工艺可以提高纤维增强金属层板的成形性能和表面质量。

For the defects in fiber-reinforced metal laminates (FMLs) formed by traditional forming methods, the integration technology of forming and curing for FMLs was proposed based on hydroforming technology. Then, the influence of external force and forming temperature parameters on the forming quality in the integration technology of forming and curing were explored by the design of relevant experiments in order to form the box-shaped part with high quality, and the relationship between the deformation inconsistency for each layer of the laminate and the properties of resin between layers was analyzed at the same time. The results show that the formability of the laminate is improved by reducing forming speed and adopting the step dynamic external force loading method. By controlling the process temperature of the whole process in stages, under the condition of the forming temperature of 60 ℃ and the curing temperature of 120 ℃, the overflow of resin is reduced, and the better interlayer quality is obtained. By researching on the forming characteristics of FMLs box-shaped part and the coordinated deformation laws between layers, the forming process was adjusted, and the finally parts with good quality were obtained. The results show that the integration process of forming and curing can enhance the formability and surface quality of FMLs.

基金项目：

四川省科技计划项目(2019YFSY0034)

作者简介：张弛烨（1996-），男，硕士研究生 E-mail：603423955@qq.com 通信作者：郎利辉（1970-2022），男，博士，教授 E-mail：lang@buaa.edu.cn

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