Filters

Settings

Now showing1 - 2 of 2
  • Some of the metrics are blocked by your 
    consent settings
    Item type:Publication, Access status: with files ,
    Closing the Gap: Exploring Approaches for Printing Lightweight Curved Pipes with Carbon Fiber Reinforced Thermoplastics
    (The European Society for Composite Materials (ESCM) and the Ecole Centrale de Nantes, 2024-07)
    Kállai, Zsolt
    ;
    Kipping, Johann
    ;
    Schüppstuhl, Thorsten
    This paper explores the innovative integration of Carbon Fiber Reinforced Polymers (CFRP) and Fused Filament Fabrication (FFF) technology to enable the on-demand printing of complex curved pipes. Traditional methods for manufacturing curved pipes face challenges in complexity and cost, prompting the need for advanced additive manufacturing techniques. This study presents two novel methods: the cut-and-place method and the compensating matrix layer method, to address the challenge of creating non-uniform layer heights with CFRP in 3D printing. These methods involve stacking segments of CFRP or adding compensating matrix layers to achieve efficient fabrication of curved pipes. The research outlines the materials considered, including continuous CFRP filament and matrix filament, and discusses challenges such as layer height control and minimum placeable length of the CFRP material. The findings aim to advance additive manufacturing techniques and facilitate the production of lightweight, individualized curved pipes for various industrial applications.
    Publicationtype: Conference Paper
      74  47
  • Some of the metrics are blocked by your 
    consent settings
    Item type:Publication, Access status: with files ,
    Fundamental investigations on the incremental forming of nonwoven-reinforced organo sheets
    (The European Society for Composite Materials (ESCM) and the Ecole Centrale de Nantes, 2024-07)
    Nettig, Doran
    ;
    Rath, Jan-Erik
    ;
    Schüppstuhl, Thorsten
    Nonwoven fibre-reinforced thermoplastics (nw-FRTP) are traditionally thermoformed in processes requiring costly moulds. A more fexible approach suitable for prototype and small-batch production could be incremental sheet forming (ISF). While ISF of metal sheets has long been a subject of research, nonwoven reinforced organo sheets have not been investigated yet. Therefore, this study uses an incremental punch test to examine the fundamental characteristics of nw-FRTP in incremental forming. A robot-guided tool with a hemispherical tip and localisable heating are employed to deform a nonwoven recycled carbon bre (nw-rCF) reinforced organo sheet. Supplementary material investigations are carried out to understand the observed effects. Results indicate successful localization of heating and deformation. Despite challenges such as temperature gradients and material deconsolidation, the experiments demonstrate promising potential for the incremental forming of nonwoven organo sheets.
    Publicationtype: Conference Paper
      41  118