表征纤维增强复合材料与快速成型金属之间的内在界面,以设计混合结构

IF 3.8 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
R. Grothe , M. Pohl , J. Troschitz , Ch. Weidermann , K.-P. Weiss , M. Gude
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引用次数: 0

摘要

将快速成型的金属部件与热固性纤维增强复合材料相结合,可以生产出功能更强、质量更轻的混合结构。在高性能领域的应用,例如在航空电力驱动装置中采用这种混合结构,为实现所需的高功率密度提供了可能。这方面的挑战在于如何根据技术要求(如高温范围)制造、设计和确定两个组件之间的接口尺寸。在本出版物中,使用选择性激光熔化(SLM)制造金属试样,然后进行预处理。与复合材料的接合是在随后制造复合材料部件时的渗透过程中完成的。为了对界面进行实验表征,使用了不同的纤维增强复合材料和金属组合。在粗糙度测量中,分析了不同材料表面因处理而产生的粗糙度,并在显微镜下检查了固有界面。在不同温度下的双搭接剪切试验中对连接强度进行了研究,并根据混合界面的制造工艺和特征对结果进行了讨论。这些结果为今后界面的设计和数值描述提供了依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characterization of intrinsic interfaces between fibre-reinforced composites and additively manufactured metal for designing hybrid structures

The combination of additively manufactured metal components with thermoset fibre-reinforced composites provides the possibility to produce hybrid structures with increased functionality and reduced mass. The application in the high-performance sector, for example the implementation of such a hybrid structure in electric drive units in aviation, provides the potential to achieve the high power densities required. The challenges in this regard are the manufacturing, design and dimensioning of the interface between the two components regarding the technical requirements, such as the high temperature range. In this publication, metal specimens are manufactured using selective laser melting (SLM) and then pre-treated. The joint with the composite is obtained in the subsequent infiltration process when the composite part is manufactured. For the experimental characterization of the interface different combinations of fibre-reinforced composites and metals are used. Within roughness measurement the surface of the different materials due to the treatment were analysed and the intrinsic interfaces were microscopically examined. The joint strength is investigated in double lap shear test at different temperatures and the results are discussed based on the fabrication process and the characteristics of the hybrid interface. The results provide the basis for the future design and numerical description of the interfaces.

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来源期刊
CiteScore
7.10
自引率
9.80%
发文量
58
审稿时长
44 days
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