用于编织可定制复合预型件的喇叭装置和载体设计

IF 4.6 2区 工程技术 Q2 ENGINEERING, MANUFACTURING CIRP Journal of Manufacturing Science and Technology Pub Date : 2024-03-22 DOI:10.1016/j.cirpj.2024.03.004
P. Assi , S. Achiche , L. Laberge Lebel
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引用次数: 0

摘要

编织物可用于汽车和航空航天工业中的复合材料结构件。编织结构对其机械性能有直接影响。然而,传统的编织机仅限于单一的编织结构。少数编织机,即所谓的 "3D 编织机",已经开发出可变载体路径的编织机。这样就可以使用同一台机器制造多种编织结构。这些机器使用切换机制,使机器和编织过程变得复杂。Assi 等人[1]介绍了一种新型编织机,它使用 "链条和链轮 "机制,无需任何切换机制即可实现可变载体路径。然而,原始的链条和链轮编织机不能用于垂直编织。当编织机处于垂直位置时,由于重力的作用,载体会卡死在角齿轮之间。受此限制,无法在芯轴上进行编织,也无法将编织机与拉伸生产线连接起来。本文介绍了链条和链轮编织机实现垂直编织的设计指南。本文提出了一种新的载体设计和一种新的角齿轮设计。此外,载体上还安装了导向脚,并在编织机床板上加工了轨道。已开发出一个功能原型来验证该设计。对设计的复杂性进行了评估,并与现有的编织机进行了比较。与其他可变载体路径的垂直编织机相比,本文提出的设计复杂度降低了 30%。
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Horngear and carrier design for braiding tailorable composite preforms

Braids can be found in structural composite parts used in the car and the aerospace industries. The architecture of the braid has a direct impact on its mechanical properties. However, traditional braiding machines are limited to a single braid architecture. Few braiding machines, so called “3D braiding machines”, have been developed to enable variable carrier’s paths. This allows fabrication of several braid architectures using the same machine. These machines use a switching mechanism, which complexifies the machine and the braiding process. A new type of braiding machine was introduced in Assi et al. [1], which uses a “chain and sprocket” mechanism, allowing variable carrier’s paths without any switching mechanism. Nevertheless, the original chain and sprocket braiding machine cannot be used for vertical braiding. When placed in the vertical position, the carrier jam between the horngears due to the force of gravity. This limitation does not allow braiding over a mandrel or coupling the braiding machine with a pultrusion line. This paper presents design guidelines for enabling vertical braiding for the chain and sprocket braiding machine. A new carrier design is proposed as well as a new horngear design. Additionally, the carrier is fitted with a guiding foot and a track is machined into the braider’s bedplate. A functional prototype has been developed to validate the design. The design complexity has been assessed and compared to existing braiding machines. The design proposed in this paper remains 30% less complex compared to other vertical braiding machines enabling variable carrier’s paths.

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来源期刊
CIRP Journal of Manufacturing Science and Technology
CIRP Journal of Manufacturing Science and Technology Engineering-Industrial and Manufacturing Engineering
CiteScore
9.10
自引率
6.20%
发文量
166
审稿时长
63 days
期刊介绍: The CIRP Journal of Manufacturing Science and Technology (CIRP-JMST) publishes fundamental papers on manufacturing processes, production equipment and automation, product design, manufacturing systems and production organisations up to the level of the production networks, including all the related technical, human and economic factors. Preference is given to contributions describing research results whose feasibility has been demonstrated either in a laboratory or in the industrial praxis. Case studies and review papers on specific issues in manufacturing science and technology are equally encouraged.
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