Deposition Thickness Modeling And Parameter Identification For A Spray-Assisted Vacuum Filtration Process In Additive Manufacturing

Abstract

To enhance mechanical and/or electrical properties of composite materials used in additive manufacturing, nanoparticles are oftentimes deposited to form nanocomposite layers. To customize the mechanical and/or electrical properties of the final composite material, the thickness of such nanocomposite layers must be precisely controlled. A thickness model for filter cakes created through spray-assisted vacuum filtration is presented in this paper, to enable the development of advanced thickness controllers. The mass transfer dynamics in the spray atomization and vacuum filtration are studied to derive solid mass, water mass, and filter cake thickness differential area models. A two-loop nonlinear constrained optimization approach is used to identify the unknown parameters in the model. Experiments involving depositing carbon nanofibers in a sheet of filter paper are used to measure the ability of the model to mimic the filtration process.

Publication Date

4-1-2017

Publication Title

Journal of Manufacturing Science and Engineering, Transactions of the ASME

Volume

139

Issue

4

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/1.4034890

Socpus ID

84994234463 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84994234463

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