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Combination of Automated Fibre Placement (AFP) and Additive Layer Manufacturing (ALM)

自动纤维铺放 (AFP) 与增材层制造 (ALM) 的结合

基本信息

批准号：
393105855
负责人：
Professor Dr.-Ing. Michael Sinapius
金额：
--
依托单位：
Institut für Mechanik und Adaptronik
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2017
资助国家：
德国
起止时间：
2016-12-31 至 2019-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/393105855?language=en
关键词：
Combination Automated Fibre Placement AFP

项目摘要

Automated processing techniques such as Automated Fiber Placement (AFP) or Automated Tape Laying (ATL) are well known nowadays. There is still much potential in these procedures to achieve better results. In the proposed research, the problem with the Automated Fiber Placement is addressed and then presented the solution to the problem. The gaps between the prepreg are often created when the fiber composite materials are laid down. These are particularly apparent on complex and double-curved surfaces. A study by the American Institute of Aeronautics and Astronautics (AIAA) has shown that a gap of 0.76 mm can reduce the compressive strength of the laminate up to 27%. In order to cover the unavoidable weak point of this production method, additional fiber composite layers are laid in order to increase the mechanical properties of components. This means the components will be heavier and more expensive to produce. In the proposed research, a 3D printer with an endless fiber-reinforced thermoplastic is integrated into a mobile thermoplastic AFP head. After placement the Prepreg on the mold, the gaps are detected by a sensor profile. The gaps are filled in with the aid of a 3D printer with continuous-fiber reinforced plastics. In combination of the two methods, the components can be produced more homogeneously. Subsequently the components are produced faster, cheaper and even lighter because of the avoidance of the additional layer.

自动化加工技术，如自动光纤放置（AFP）或自动胶带铺设（ATL）是众所周知的。在这些程序中仍有很大的潜力来获得更好的结果。在本文的研究中，提出了光纤自动放置的问题，并提出了解决问题的方法。预浸料之间的间隙通常是在铺设纤维复合材料时产生的。这在复杂曲面和双曲面上尤为明显。美国航空航天学会（AIAA）的一项研究表明，0.76 mm的间隙可使层压板的抗压强度降低27%。为了掩盖这种生产方法不可避免的弱点，需要铺设额外的纤维复合材料层，以提高部件的机械性能。这意味着零部件将会更重，生产成本也会更高。在提出的研究中，将具有无限纤维增强热塑性塑料的3D打印机集成到移动热塑性AFP头中。在将预浸料放置在模具上后，由传感器轮廓检测间隙。这些缝隙是在3D打印机的帮助下用连续纤维增强塑料填充的。结合这两种方法，可以生产出更均匀的成分。随后，由于避免了额外的层，组件生产得更快，更便宜，甚至更轻。