纤维增强复合材料熔融沉积成型增材制造装备研发

发布时间：2017-12-27 21:26

本文关键词：纤维增强复合材料熔融沉积成型增材制造装备研发　出处：《安徽科技学院》2017年硕士论文　论文类型：学位论文

【摘要】：纤维增强复合材料熔融沉积成型增材制造技术(FFP:FRP-FDM-3DP)是3D打印的前沿技术,可以有效提高FDM成型3D打印产品的强度和精度,增强产品的应用范围。虽然FFP具有以上诸多优势,但是也存在一些关键问题,如:没有专门针对FFP专用线材的生产挤出设备;粉末纤维增强效果有限,连续纤维增强材料拉丝现象严重、不易牵引和切断、无法打印结构复杂的零部件以及镂空件;工作效率低等问题。据此,本文在研究FFP关键装备的基础上,重点研究短切纤维增强复合材料熔融沉积成型增材制造装备。主要研究内容及结论如下:(1)研制微型低耗短纤维增强复合材料熔融沉积成型3D打印专用线材挤出设备。采用挤出成型原理结合3D打印专用线材挤出模具研制微型FFP专用线材挤出设备。用以制备不同种类、规格、含量的纤维及树脂增强复合材料熔融沉积成型3D打印专用线材。(2)研制多头高效FDM成型3D打印设备。为提高3D打印工作效率,提出3D打印技术的低成本、多头高效打印的生产模式。依据熔融沉积成型原理设计了多打印头3D打印机,并与单打印头3D打印机进行对比实验,结果表明据此设计的多头3D打印机,能够3-5倍提高工作效率和设备利用率,快速完成产品的打印生产工作。(3)结合案例介绍短纤维增强复合材料熔融沉积成型3D打印技术的应用情况。以团队研制的第五套人民币硬币分拣机为案例简要介绍短纤维增强复合材料熔融沉积成型3D打印技术的应用情况。
[Abstract]:Fiber reinforced polymer (FFP:FRP-FDM-3DP) is the leading technology of 3D printing. It can effectively improve the intensity and accuracy of FDM forming 3D printing products, and enhance the application scope of products. Although FFP has many advantages, but there are some key problems, such as: no specific FFP special wire extrusion equipment; powder reinforced effect is limited, continuous fiber reinforced material drawing phenomenon, not easy to traction and cutting, unable to print complex parts and hollow parts; the problem of low work efficiency. On the basis of the study of the key equipment of FFP, this paper focuses on the research of the equipment for the manufacturing of short cut fiber reinforced composites by molten deposition and deposition. The main contents and conclusions are as follows: (1) the development of 3D printing special wire extrusion equipment for micro low consumption short fiber reinforced composites by melting deposition molding. The extrusion molding principle combined with 3D printing special wire extrusion die was used to develop the micro FFP special wire extrusion equipment. It is used to prepare 3D printing special wire for fiber and resin reinforced composites with different kinds, specifications and content. (2) the development of multi head high efficiency FDM 3D printing equipment. In order to improve the efficiency of 3D printing work, the production mode of low cost and multi head high efficiency printing with 3D printing technology is put forward. According to the principle of fused deposition modeling design of multiple print head 3D printer, and is compared with a single print head 3D printer, long 3D printer results of this design can complete, 3-5 times to improve work efficiency and equipment utilization rate of finished products, print production work quickly. (3) the application of 3D printing technology for melt deposition of short fiber reinforced composites is introduced in the case of a case. In this paper, fifth sets of RMB coin sorting machines developed by the team are used as a case to introduce the application of 3D printing technology for short fiber reinforced composites.
【学位授予单位】：安徽科技学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB33;TP391.73

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