The effect of short glass fibers on the process behavior of polyamide 12 during selective laser beam melting

Lanzl, Lydia; Wudy, Katrin; Drummer, Dietmar

doi:10.1016/j.polymertesting.2019.106313

Cited by 41 publications

(14 citation statements)

References 21 publications

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“…Glass bead/PA12 [161a] Cu/PA12 [200] CF/PA12 [201] GF/PA12 [202] Carbon black/PA12 [203] OMMT/PP [140] GNP a) /PEEK [190b] • MWCNT/PA12 [189,191,204] MWCNT/TPU [190a,204a] SWCNT b) /TPU [205] Carbon black/PA12 [206] Graphene/TPU [192] OMMT/PP [140] GNP/PEEK [190b] GNP/PA12 [207] • Low cost • Moderate filler dispersion on powder particle surfaces • Good interfacial interaction possible • Solvent intensive Melt blending and mechanical grinding CNF/PA12 [194] OMMT/PP [140] BaTiO 3 /PA11 [162] • Good filler dispersion in powder particles • Good interfacial interaction possible • Irregular particle shape • Poor powder flowability • Particle rounding or other post-processing treatment required…”

Section: Dry Mixingmentioning

confidence: 99%

Recent Progress on Polymer Materials for Additive Manufacturing

Tan

Zhu

Zhou

2020

Adv Funct Materials

492

238

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Additive manufacturing (AM) is the process of printing 3D objects in a layer-by-layer manner. Polymers and their composites are some of the most widely used materials in modern industries and are of great interest in the field of AM due to their vast potential for various applications, especially in the medical, aerospace, and automotive industries. Many studies have been conducted to develop new polymer materials for AM techniques, which include vat photopolymerization, material jetting, powder bed fusion, material extrusion, binder jetting, and sheet lamination. Although several reviews on the development of polymer materials for AM have been published, most of them only focus on a specific application, process, or type of material. Therefore, this article serves to provide a comprehensive review on the progress in polymer material development for AM techniques. It begins with an introduction to different AM techniques, followed by highlighting the progress of their development. Material requirements, notable advances in newly developed materials and their potential applications are discussed in detail and summarized. This review concludes by identifying the major challenges currently encountered in using AM for polymer materials and providing insights into the valuable opportunities it presents, in hopes of spurring further development in this field.

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Section: Dry Mixingmentioning

confidence: 99%

Recent Progress on Polymer Materials for Additive Manufacturing

Tan

Zhu

Zhou

2020

Adv Funct Materials

492

238

View full text Add to dashboard Cite

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“…The investigation of the biomechanical behavior of an orthopedic medical implant is more complex compared to the mechanical characterization when following standard methods. The biomechanical behavior of a medical implant can be determined by mechanical tests using special devices, by several studies in vivo and in vitro, or by using predictable methods that do not require special conditions, such as FEA methods [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ]. FEA is one of the most widely used nondestructive methods for the prediction of the mechanical behavior of complex parts or assemblies with relative motions.…”

Section: Introductionmentioning

confidence: 99%

Selective Laser Sintering of PA 2200 for Hip Implant Applications: Finite Element Analysis, Process Optimization, Morphological and Mechanical Characterization

et al. 2021

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Polyamide 12 (PA 22000) is a well-known material and one of the most biocompatible materials tested and used to manufacture customized medical implants by selective laser sintering technology. To optimize the implants, several research activities were considered, starting with the design and manufacture of test samples made of PA 2200 by selective laser sintering (SLS) technology, with different processing parameters and part orientations. The obtained samples were subjected to compression tests and later to SEM analyses of the fractured zones, in which we determined the microstructural properties of the analyzed samples. Finally, an evaluation of the surface roughness of the material and the possibility of improving the surface roughness of the realized parts using finite element analysis to determine the optimum contact pressure between the component made of PA 2200 by SLS and the component made of TiAl6V4 by SLM was performed.

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“…The width of the tensile bars, which were produced according to DIN EN ISO 3167 [ 20 ] were measured by a caliper at three different spots (see Figure 4 ). Mechanical properties of these material systems were published in a former study [ 5 ]. The specified width size was 4 mm.…”

Section: Methodsmentioning

confidence: 99%

“…Using short glass fibers as fillers can lead to an increased stiffness while offering the potential to strengthen a material at the same time, which is interesting for housing applications. Nevertheless, the process behavior, like flowability, packing porosity or optical behavior, is changed by using fillers depending on their type, size distribution and shape [ 5 ]. The interaction between these sizes is the deciding factor of whether a powder is suitable for the PBF/P-process.…”

Section: Introductionmentioning

confidence: 99%

Process Behavior of Short Glass Fiber Filled Systems during Powder Bed Fusion and Its Effect on Part Dimensions

Lanzl

Drummer

2021

Polymers

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In powder bed fusion of polymers, filled systems can provide a wide range of part properties, which is still a deficit in additive manufacturing, as the material variety is limited. Glass fiber filled polymers provide a higher strength and stiffness in parts; nevertheless, the process behavior differs from neat polymer systems. In this study, the optical properties and their effect on the part dimensions are analyzed. A higher glass fiber content leads to an increased absorption of laser energy, while the specific heat capacity decreases. This results in larger part dimensions due to higher energy input into the powder bed. The aim of the study is to gain process understanding in terms of ongoing mechanisms during processing filled systems on the one hand and to derive strategies for filled polymer systems in powder bed fusion on the other hand.

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The effect of short glass fibers on the process behavior of polyamide 12 during selective laser beam melting

Cited by 41 publications

References 21 publications

Recent Progress on Polymer Materials for Additive Manufacturing

Recent Progress on Polymer Materials for Additive Manufacturing

Selective Laser Sintering of PA 2200 for Hip Implant Applications: Finite Element Analysis, Process Optimization, Morphological and Mechanical Characterization

Process Behavior of Short Glass Fiber Filled Systems during Powder Bed Fusion and Its Effect on Part Dimensions

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