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Title: Single point incremental formed molds and digital image correlation in heavy gauge thermoforming
Authors: Van Mieghem, Bart
Appermont, Raf
Vanhove, Hans
Duflou, Joost
Van Bael, Albert
Ivens, Jan
Issue Date: Jul-2013
Publisher: Society of Plastics Engineers
Host Document: EUROTEC 2013 - Proceedings of the 2nd European Technical Conference & Exhibition pages:713-717
Conference: Eurotec edition:2 location:Lyon, France date:04-05 July 2013
Abstract: Heavy gauge thermoforming on an industrial scale often involves small production series. The cost of the mold then constitutes a considerable part of the production cost. Besides this financial aspect, thermoforming is primarily an experience and trial and error based technology, resulting in suboptimal processes and lengthy optimization procedures. This paper presents a potential solution for both aspects. In the first place, the use of Single Point Incremental Forming (SPIF), as a technique to produce thermoforming molds based on mechanically deformed thin sheets of metal, is presented. Secondly, the use of Digital Image Correlation (DIC) as a technology to aid the thermoformer in reducing setup times and trial and error cycles is elaborated. A SPIF mold of a washing sink is produced and the deformation during thermoforming of a high impact polystyrene (HIPS) sheet is measured by a DIC setup, mounted on the machine, allowing for an in situ 3D reconstruction of the final product, and full field wall thickness measurements. It is concluded that both SPIF and DIC are two valuable techniques that can be used in heavy gauge thermoforming.
ISBN: 978-0-9850112-2-2
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Structural Composites and Alloys, Integrity and Nondestructive Testing
Departement Industriƫle Wetenschappen en Technologie - UC Limburg
Production Engineering, Machine Design and Automation (PMA) Section
Centre for Industrial Management / Traffic & Infrastructure
Department of Materials Engineering - miscellaneous
Materials Technology TC, Technology Campus De Nayer Sint-Katelijne-Waver
Technologiecluster Materialentechnologie
Sustainable Chemical Process Technology TC, Technology Campus Diepenbeek
Sustainable Chemical Process Technology TC
Materials Technology TC, Technology Campus Diepenbeek

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