Publication: A Practical verification of a computer simulation for injection molding applied to amorphous thermoplastic polyesters
Issued Date
1991-08-01
Resource Type
ISSN
15256111
03602559
03602559
Other identifier(s)
2-s2.0-0025889939
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Polymer-Plastics Technology and Engineering. Vol.30, No.5-6 (1991), 441-452
Suggested Citation
F. H. Axtell, B. Haworth A Practical verification of a computer simulation for injection molding applied to amorphous thermoplastic polyesters. Polymer-Plastics Technology and Engineering. Vol.30, No.5-6 (1991), 441-452. doi:10.1080/03602559108019212 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/22017
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Title
A Practical verification of a computer simulation for injection molding applied to amorphous thermoplastic polyesters
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Abstract
A comparison has been made between the pressure drops arising during injection molding as predicted by a simulation software package named SIMPOL®and as measured during molding trials conducted to study the effects of molding variables. The theory used to design the software has been reviewed and the operation described. The comparison was made using amorphous thermoplastic polyesters, PET and PCTG. The molding conditions used for the simulated trials were the same as those used in practical molding trials. The molding trials were conducted using a mold fitted with a cavity transducer and a machine fitted with a hydraulic pressure sensor. The simulation shows qualitative agreement to the observations made in practice. The difference in pressure drop values are attributed to the software’s dependence on crystalline PET physical properties for calculations and an overestimation of the frozen layer thickness by the simulation model. Overall the simulation has been shown to be a pragmatic tool for the production engineer working in the thermoplastic injection molding industry. © 1991, Taylor & Francis Group, LLC. All rights reserved.