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Title: Ultrasonically-assisted polymer molding: an evaluation
Authors: Moles, Matthew
Roy, Anish
Silberschmidt, Vadim V.
Keywords: Ultrasound
Finite element
Thermal isolation
Issue Date: 2016
Publisher: © Elsevier
Citation: MOLES, M., ROY, A. and SILBERSCHMIDT, V.V., 2016. Ultrasonically-assisted polymer molding: an evaluation. Physics Procedia, 87, pp. 61-71.
Abstract: Energy reduction in extrusion and injection molding processes can be achieved by the introduction of ultrasonic energy. Polymer flow can be enhanced on application of ultrasonic vibration, which can reduce the thermal and pressure input requirements to produce the same molding; higher productivity may also be achieved. In this paper, a design of an ultrasound–assisted injection mold machine is explored. An extrusion-die design was augmented with a commercial 1.5 kW ultrasonic transducer and sonotrode designed to resonate close to 20 kHz with up to 100 ȝPY vibration amplitude. The design was evaluated with modal and thermal analysis using finite-element analysis software. The use of numerical techniques, including computational fluid dynamics, fluid-structure interaction and coupled Lagrangian-Eulerian method, to predict the effect of ultrasound on polymer flow was considered. A sonotrode design utilizing ceramic to enhance thermal isolation was also explored.
Description: This is an Open Access article published under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/). This conference paper was delivered at the 44th Annual Symposium of the Ultrasonic Industry Association (UIA), Washington, DC, USA, 20th-22nd April 2015.
Sponsor: Innovate UK project ULTRAMELT.
Version: Published
DOI: 10.1016/j.phpro.2016.12.011
URI: https://dspace.lboro.ac.uk/2134/23940
Publisher Link: http://dx.doi.org/10.1016/j.phpro.2016.12.011
ISSN: 1875-3892
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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