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HERO ID
5636445
Reference Type
Journal Article
Title
Experimental and numerical study on the thermoforming process of amorphous thermoplastic polymers
Author(s)
Eksi, O; Karabeyoglu, SS; Cinar, K
Year
2019
Is Peer Reviewed?
1
Journal
Materials Testing
ISSN:
2195-8572
Publisher
Carl Hanser Verlag
Volume
61
Issue
5
Page Numbers
417-424
Language
English
DOI
10.3139/120.111351
Web of Science Id
WOS:000466985100004
URL
http://
://WOS:000466985100004
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Abstract
Thickness distribution has an important impact on the quality of thermoformed products. It has significant effects not only on durability but also on the oxygen and gas transmission rate of thermoformed packaging products. In this study, acrylonitrile butadiene styrene and polystyrene sheets were thermoformed using a lab scale thermoforming machine. Three different mold shapes were considered: conical, spherical and cylindrical. The thickness distribution of thermoformed acrylonitrile butadiene styrene and polystyrene samples for each mold was investigated based on geometric element analysis (GEA) and finite element analysis (FEA). Finite element analysis yielded more accurate results than geometric element analysis. Process parameters such as temperature distribution on the sheets before molding, have a crucial effect on thickness distribution for all configurations.
Keywords
Temperature distribution; acrylonitrile butadiene styrene (ABS); polystyrene (PS); thickness distribution; geometric element analysis (GEA); finite element analysis (FEA)
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