Development of a mass production process for fibre-reinforced parts with transparent polyurethane matrix exemplarily for a CFRP seat back with a visible surface

开发具有透明聚氨酯基体的纤维增强部件的大规模生产工艺,例如具有可见表面的 CFRP 座椅靠背

基本信息

项目摘要

High performance parts made from composites and polyurethane (PU) as matrix material have proven their economic potential in many industrial applications. However, the disadvantages of the produced parts are the low fibre volume content and the use of foamed PU, which leads to a limited mechanical performance. The development in the field of PU spray impregnation of continuous fibre textiles (Resin Spray Prepregging (RSP)) in combination with an optimised forming and curing process within the research unit (FOR860) allows the automated production of high performance parts in short cycle times with a high fibre volume content (> 50 %).The scientific focus of the FOR860 was the development of the production technology and the achievable mechanical properties. For specific applications, further requirements regarding the surface of the parts are requested. The aim of this transfer project is to transfer the knowledge of the projects 4 and 8 of the FOR860 to the manufacturing of highly loadable parts with a defined surface quality and to generate detailed process knowledge. The textile reinforcement should be visible without drawing its structure on the surface in order to reduce the refinishing operations. For an implementation of the production technology, there are further scientific investigations necessary. Because of the complexity, these investigations are only feasible by interdisciplinary cooperation between industrial companies and a research institute. Within the investigations of the FOR860, it could be shown, that by an adapted process and machine technology the manufacturing of almost pore-free monolithic parts is possible. To enable this technology for the manufacturing of parts with defined surface properties, systematic investigations on test specimens will be made to determine the influence of the raw materials binder, fabrics and PU-systems on the mechanical properties at various temperatures. Following that, the manufacturing of fibre-reinforced plastic parts is analysed using two parallel research approaches. The investigation will include a variation of the process, material and preforming parameters as well as an adaption of the tooling technology. To be consistent with the industrial requirements, the surface properties will be tested by different environmental conditions (alternating climate test, UV radiation) in defined times. The fundamental research on planar parts will be followed by the transfer of the knowledge to a seat back in lightweight design. The chosen geometry of the seat shall enable the knowledge transfer to other structural components
由复合材料和聚氨酯(PU)作为基体材料制成的高性能部件已在许多工业应用中证明了其经济潜力。然而,所生产的部件的缺点是纤维体积含量低和使用发泡PU,这导致有限的机械性能。连续纤维织物聚氨酯喷涂浸渍技术的发展(树脂喷射预浸(RSP))结合研究单元(FOR 860)内的优化成型和固化工艺,可以在短周期内自动生产高性能部件,纤维体积含量高(> 50%)FOR 860的科学重点是开发生产技术和可实现的机械性能。对于特定的应用,需要对零件表面提出进一步的要求。该转移项目的目的是将FOR 860项目4和8的知识转移到具有规定表面质量的高度可重复零件的制造中,并生成详细的工艺知识。织物加固应是可见的,而不需要在表面上绘制其结构,以减少修补操作。为了实施生产技术,需要进一步的科学研究。由于其复杂性,这些研究只有通过工业公司和研究机构之间的跨学科合作才是可行的。在对FOR 860的研究中,可以证明,通过调整工艺和机械技术,制造几乎无孔的整体部件是可能的。为了使该技术能够用于制造具有规定表面性能的部件,将对试样进行系统研究,以确定原材料粘合剂、织物和PU系统对各种温度下机械性能的影响。接下来,使用两种平行的研究方法分析了纤维增强塑料部件的制造。调查将包括工艺、材料和预成型参数的变化以及模具技术的适应。为了符合工业要求,将在规定的时间内通过不同的环境条件(交变气候测试,紫外线辐射)测试表面性能。在对平面零件进行基础研究之后,将知识转移到轻量化设计中的座椅靠背上。所选座椅几何形状应能将知识传递到其他结构部件

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Production of CFRP components with clear surface layer in the PU spray impregnation process
采用 PU 喷涂浸渍工艺生产具有透明表面层的 CFRP 部件
  • DOI:
    10.1063/1.5016754
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hopmann;Karatzias;Wagner
  • 通讯作者:
    Wagner
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Professor Dr.-Ing. Christian Hopmann其他文献

Professor Dr.-Ing. Christian Hopmann的其他文献

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{{ truncateString('Professor Dr.-Ing. Christian Hopmann', 18)}}的其他基金

Interactions in laser joining of metals to polymers
金属与聚合物激光连接中的相互作用
  • 批准号:
    417913350
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development of a databased model for the prediction of effective mechanical and thermal properties of injection-moulded semi-crystalline thermoplastics by means of an artificial neural network (KNN) taking into account the microstructure
开发数据库模型,通过考虑微观结构的人工神经网络 (KNN) 来预测注塑半结晶热塑性塑料的有效机械和热性能
  • 批准号:
    426052003
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Analysis and modeling of the damage behavior of long-fibre-reinforced semi-crystalline thermoplastics considering fibre length and fibre curvature
考虑纤维长度和纤维曲率的长纤维增强半结晶热塑性塑料的损伤行为分析和建模
  • 批准号:
    416461157
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Simulation of the development of the microstructure of injection-moulded semi-crystalline thermoplastics by means of a multi-scale approach under consideration of shear-induced crystal forms (alpha and beta)
在考虑剪切诱导晶型(α 和 β)的情况下,通过多尺度方法模拟注塑半结晶热塑性塑料的微观结构的发展
  • 批准号:
    408012354
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Experimental and numerical investigations of laminated, fibre reininforced plastics under crash loading
碰撞载荷下层压纤维增强塑料的实验和数值研究
  • 批准号:
    404502442
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development and validation of a method to determine the frequency- and temperature-dependent stiffness and damping properties of plastics for the structure-borne noise simulation more precisely using the example of the for the ultrasonic welding process r
开发和验证一种方法,以确定塑料的与频率和温度相关的刚度和阻尼特性,以使用超声波焊接工艺的示例更精确地进行结构噪声模拟
  • 批准号:
    398244070
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Analysis and modelling of the environmental stress cracking resistance of short fiber reinforced amorphous thermoplastics
短纤维增强非晶态热塑性塑料的耐环境应力开裂性能分析与建模
  • 批准号:
    369874665
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Analysis of the flow paths in a rubber internal mixer in dependency of different process parameters
橡胶密炼机中不同工艺参数的流路分析
  • 批准号:
    377803088
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Integrative calculation of the weld strength of plastics parts based on an interdiffusion model presented for laser transmission welding
基于激光透射焊接相互扩散模型的塑料件焊接强度综合计算
  • 批准号:
    321043881
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Fundamental research on foaming of elastomers with water as physical blowing agent and description of mechanisms of foaming
水为物理发泡剂的弹性体发泡基础研究及发泡机理描述
  • 批准号:
    317030171
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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