Local Viscosity Control Printing for High-Throughput Additive Manufacturing of Polymers
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Sarma_Local Viscosity Control.pdf
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1.05 MB
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Adobe PDF
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Author(s)
Siegel, Joshua E
Ehrenberg, Isaac Mayer
Erb, Dylan Charles
Jain, Pranay
Sarma, Sanjay E
Date Issued
December 2016
Journal
3D Printing and Additive Manufacturing
Publisher
Mary Ann Liebert Inc
Citation
Siegel, Joshua E., et al. “Local Viscosity Control Printing for High-Throughput Additive Manufacturing of Polymers.” 3D Printing and Additive Manufacturing, vol. 3, no. 4, Dec. 2016, pp. 252–61. © 2016 Mary Ann Liebert, Inc.
Version
Final published version
Abstract
Fused deposition modeling's (FDM) throughput is limited by process physics as well as practical considerations favoring single-head polymer extrusion. To expedite the thermoplastic additive manufacturing process, we propose a parallelized material deposition process called local viscosity control (LVC) additive manufacturing. LVC prints an entire layer in one step by selectively modulating the viscosity of polymer feedstock in contact with a heated wire mesh. Layers of molten polymer are contact printed, with the relative motion between the wire mechanism and a build plate allowing wetting and surface tension to transfer selectively heated, lower viscosity regions of polymer to a fixed substrate. Experiments demonstrate the viability of this process using a single cell depositing layered polycarbonate pixels. Theoretical analysis shows this process may offer similar capabilities in resolution to conventional FDM with a significantly higher production rate for commonly available input power.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1089/3DP.2016.0037
