Automation of carbon fibre preform manufacture for affordable aerospace applications
Automation of carbon fibre preform manufacture for affordable aerospace applications
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DOI：
10.1016/s1359-835x(00)00154-8
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发表时间：
2001-01-01
影响因子：
8.7
通讯作者：
Mills, A
中科院分区：
文献类型：
--
作者：
Mills, A
目前，碳纤维复合材料用于飞机结构部件的重量和耐久性益处不能在没有非常大的制造成本溢价的情况下提供。迄今为止，液体和树脂薄膜成型的新加工技术仅被证明适用于复杂的高价值零件。这主要是由于在模制之前制造碳纤维预制件所需的高材料和劳动力成本。一个为期三年的EPSRC（英国研究理事会）/航空航天工业资助的项目，INFACS，解决了使用低成本材料的碳纤维预制件制造的自动化。开发了使用粘合剂涂覆的线的单向带的制造，以形成用于预成型件层压机的低成本原料。设想、设计和建造一台机器，将单曲率部件层压成净形状，厚度可达3 m × 1.5 m。它实现了45 kg/h的净层压速率。对于加劲肋等脱轨器的安装，缝接和销接技术已发展成为有效的工艺。通过树脂传递模塑（RTM）方法将部件加工成纤维体积分数为58%。制造各种尺寸蒙皮组件的成本模型显示，与自动预浸带铺设和高压釜固化的当前“最先进”制造技术相比，使用该项目开发的技术可大幅降低成本。对于支线飞机尾翼蒙皮，模型成本降低了60%。机器和预制件的开发工作正在EPSRC IMI航空航天部门项目集成复合材料部件自动制造（AMICC）的范围内继续进行。(C)2001爱思唯尔科技有限公司版权所有。
At the present time, the weight and durability benefits of carbon fibre composites for aircraft structure components cannot be provided without very large manufacturing cost premiums. The new processing techniques of liquid and resin film moulding have to date only been proven to be justifiable for complex high value parts. This has primarily resulted from the high materials and labour costs required to manufacture the carbon fibre preform prior to moulding. A three year EPSRC (UK Research Council)/aerospace industry funded project, INFACS, addressed the automation of carbon fibre preform manufacture using low cost materials. The manufacture of a unidirectional tape using a binder coated thread was developed to form a low cost feed-stock for a preform laminating machine. A machine was conceived, designed and built to laminate single curvature parts to net shape with tailored thickness up to a size of 3 m by 1.5 m. It has achieved a net laminating rate of 45 kg/h. For the attachment of derails such as stiffeners, the techniques of stitching and pinning were developed into effective processes. Components were processed by the Resin Transfer Moulding (RTM) method to a fibre volume fraction of 58%. Cost modelling of the manufacture of a range of sizes of skin components showed large reductions using the technology developed on the project compared to the current 'state of the art' manufacturing technology of automated pre-preg tape laying and autoclave curing. For a regional aircraft tail-plane skin the modelled cost reduction was 60%. The machine and preform development work is continuing within the EPSRC IMI Aerospace Sector project Automated Manufacture of Integrated Composite components (AMICC). (C) 2001 Elsevier Science Ltd. All rights reserved.