FDM printing of 3D forms with embedded fibrous materials

Richter, Christoph; Schmülling, Stefan; Ehrmann, Andrea; Finsterbusch, Karin

doi:10.1142/9789814730518_0112

Cited by 28 publications

(20 citation statements)

References 6 publications

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“…On the other hand, when polymer macromolecular chains are aligned perpendicularly to the direction of tension, they are often unable to rearrange. In such a situation, when adhesion between particular chains is significantly weaker than the strength of the chain itself, delamination may occur [24]. It is especially likely for a 90 • infill angle when every second layer is deposited perpendicularly to the direction of strain applied during tensile tests.…”

Section: Resultsmentioning

confidence: 99%

Static and Dynamic Mechanical Properties of 3D Printed ABS as a Function of Raster Angle

et al. 2020

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Due to the rapid growth of 3D printing popularity, including fused deposition modeling (FDM), as one of the most common technologies, the proper understanding of the process and influence of its parameters on resulting products is crucial for its development. One of the most crucial parameters of FDM printing is the raster angle and mutual arrangement of the following filament layers. Presented research work aims to evaluate different raster angles (45°, 55°, 55’°, 60° and 90°) on the static, as well as rarely investigated, dynamic mechanical properties of 3D printed acrylonitrile butadiene styrene (ABS) materials. Configuration named 55’° was based on the optimal winding angle in filament-wound pipes, which provides them exceptional mechanical performance and durability. Also in the case of 3D printed samples, it resulted in the best impact strength, comparing to other raster angles, despite relatively weaker tensile performance. Interestingly, all 3D printed samples showed surprisingly high values of impact strength considering their calculated brittleness, which provides new insights into understanding the mechanical performance of 3D printed structures. Simultaneously, it proves that, despite extensive research works related to FDM technology, there is still a lot of investigation required for a proper understanding of this process.

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Section: Resultsmentioning

confidence: 99%

Static and Dynamic Mechanical Properties of 3D Printed ABS as a Function of Raster Angle

et al. 2020

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“…Th e integration of single textile fi bres may be useful, but can lead to great problems when untwisted yarns (e.g. carbon fi bre yarns) are used [8]. A possible solution for this problem can be an additional heat treatment of the whole composite aft er the printing process [9].…”

Section: Increasing Adhesion Of 3d Printing On Textile Fabrics By Polmentioning

confidence: 99%

Increasing adhesion of 3D printing on textile fabrics by polymer coating

Unger¹,

Scheideler²,

Meyer³

et al. 2018

TEK

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3D printing is a technology which has recently found its way into the fi eld of textile fabrics, from fashion design to technical textiles. By combining both technologies with their advantages, new composites with novel physical properties can be created. Increasing adhesion between both components, however, still remains challenging. This paper suggests a new method to improve the adhesion of a 3D printed object on a textile fabric by previously coating the latter with a polymer layer. In this way, adhesion can be substantially enhanced without signifi cantly changing the bending stiff ness and haptic properties of a fabric. In this study, this procedure worked especially well for printing PLA (poly(lactic acid)) on PMMA (poly(methyl methacrylate)) or PLA coatings, while for printing ABS (acrylonitrile butadiene styrene), the best textile coatings were ABS and PLA.

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“…This anisotropy hinders the use of this technology for demanding applications. In order to fill that gap, the extrusion of multimaterials is under intense research (Quan et al, 2015;Richter et al, 2015). Good examples are the integration of composites and carbon-fiber-reinforced filaments (Goh et al, 2019;Papon & Haque, 2019;Tekinalp et al, 2014).…”

Section: Materials Extrusionmentioning

confidence: 99%

A methodology for the decentralised design and production of additive manufactured spare parts

Montero

Weber

Bleckmann³

et al. 2020

Production & Manufacturing Research

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The production of spare parts using Additive Manufacturing (AM) is an emerging area that impacts the supply chain management. To give designers a way to proceed at the moment of redesign and produce a spare part using AM, this contribution presents a methodology for the design and manufacturing of digital spare parts using AM in decentralized facilities. The redesign of the spare parts is tackled by giving design considerations based on agile hardware development practices to improve the quality of the spare parts and reduce the lead time. Since this methodology is derived from different case studies of the military over two years, the approach is suited for the defence industry but can be adapted to other industries that operate reduced facilities abroad. Additionally, three different use cases following the methodology are presented. The weaknesses of the processes are highlighted and some recommendations for production engineers and designers are given.

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FDM printing of 3D forms with embedded fibrous materials

Cited by 28 publications

References 6 publications

Static and Dynamic Mechanical Properties of 3D Printed ABS as a Function of Raster Angle

Static and Dynamic Mechanical Properties of 3D Printed ABS as a Function of Raster Angle

Increasing adhesion of 3D printing on textile fabrics by polymer coating

A methodology for the decentralised design and production of additive manufactured spare parts

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