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    CFD Analysis on Extrusion of Slurry in Direct Ink Writing

    CFD Analysis on Extrusion of Slurry in Direct Ink Writing


    Direct ink writing (DIW) is one of the additive manufacturing (AM) technologies being widely utilized to produce functional parts from a complex three-dimensional (3D) computer-aided design (CAD) model without the need of dies, molds, jigs, fixtures and other expensive tools. Recently, screw-type extruder become very vital to handle high viscosity slurry and uniform dispersion of material from the micronozzle for achieving high-dimensional accuracy is extremely essential to fabricate parts using DIW. In this article, computational fluid dynamic (CFD) analysis is performed to simulate the extrusion behavior of the slurry having viscosity in the order of 50,000 poise. Through varying the inlet velocity of slurry for various viscosities, CFD analysis is carried out to determine the maximum pressure developed at the top of feed zone. In addition, extrusion behavior is studied for the cases of increase in the speed of screw spindle and varying mass flow rate. Experiments are performed to measure the viscosity of the slurry with respect to shear rate. Theoretical calculations are compared with CFD analysis results and they are in good agreement in predicting the inlet pressure.

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    Titel :

    CFD Analysis on Extrusion of Slurry in Direct Ink Writing

    Weitere Titelangaben:

    Lect.Notes Mechanical Engineering

    Beteiligte:
    Gascoin, Nicolas (Herausgeber:in) / Balasubramanian, E. (Herausgeber:in) / Balasubramanian, E. (Autor:in) / Kumar, Yogesh (Autor:in) / Raj, Nishant Kumar (Autor:in) / Smruthi, S. (Autor:in) / Vikram, P. (Autor:in)
    Erschienen in:

    Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering ; Kapitel : 7 ; 61-72

    Lecture Notes in Mechanical Engineering

    Erscheinungsdatum :

    2020-09-27

    Format / Umfang :

    12 pages

    ISBN :

    978-981-15-6619-6 , 978-981-15-6618-9

    ISSN :

    2195-4364 , 2195-4356

    DOI :

    https://doi.org/10.1007/978-981-15-6619-6_7

    Medientyp :

    Aufsatz/Kapitel (Buch)

    Format :

    Elektronische Ressource

    Sprache :

    Englisch

    Schlagwörter :

    Direct ink writing , Slurry , Screw extruder , Viscosity , CFD , Additive manufacturing Engineering , Engineering Design , Automotive Engineering , Industrial and Production Engineering , Engineering Fluid Dynamics , Mechanical Engineering

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