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Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method

The main challenge in a polymer coextrusion process is to have a good die design prior to the process, which can minimize the geometric errors that are caused by extrusion swell and interface motion. For this purpose, a coupling method of optimization and inverse design for a coextrusion die was stu...

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Autores principales: Hao, Xinyu, Zhang, Guangdong, Deng, Tong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10422200/
https://www.ncbi.nlm.nih.gov/pubmed/37571203
http://dx.doi.org/10.3390/polym15153310
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author Hao, Xinyu
Zhang, Guangdong
Deng, Tong
author_facet Hao, Xinyu
Zhang, Guangdong
Deng, Tong
author_sort Hao, Xinyu
collection PubMed
description The main challenge in a polymer coextrusion process is to have a good die design prior to the process, which can minimize the geometric errors that are caused by extrusion swell and interface motion. For this purpose, a coupling method of optimization and inverse design for a coextrusion die was studied for a medical striped catheter. In the study, the main material was thermoplastic polyurethane (TPU), and the auxiliary material was TPU filled with 30 wt% barium sulfate. An overall optimization design method was used to optimize the geometry of the extrusion die channel for the striped catheter, which had a complex geometry. In the global optimization process, the local inverse design method was used to design the inlet of the auxiliary material. The non-linear programming by quadratic Lagrangian (NLPQL) algorithm was used to obtain the optimal geometric solution of the coextrusion die runner. The experimental verification results showed that the coupling method for coextrusion die design improved the design efficiency of the coextrusion die remarkably. The value of the objective function, which was used to measure the geometric error of the product, was reduced by 72.3% compared with the initial die design.
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spelling pubmed-104222002023-08-13 Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method Hao, Xinyu Zhang, Guangdong Deng, Tong Polymers (Basel) Article The main challenge in a polymer coextrusion process is to have a good die design prior to the process, which can minimize the geometric errors that are caused by extrusion swell and interface motion. For this purpose, a coupling method of optimization and inverse design for a coextrusion die was studied for a medical striped catheter. In the study, the main material was thermoplastic polyurethane (TPU), and the auxiliary material was TPU filled with 30 wt% barium sulfate. An overall optimization design method was used to optimize the geometry of the extrusion die channel for the striped catheter, which had a complex geometry. In the global optimization process, the local inverse design method was used to design the inlet of the auxiliary material. The non-linear programming by quadratic Lagrangian (NLPQL) algorithm was used to obtain the optimal geometric solution of the coextrusion die runner. The experimental verification results showed that the coupling method for coextrusion die design improved the design efficiency of the coextrusion die remarkably. The value of the objective function, which was used to measure the geometric error of the product, was reduced by 72.3% compared with the initial die design. MDPI 2023-08-04 /pmc/articles/PMC10422200/ /pubmed/37571203 http://dx.doi.org/10.3390/polym15153310 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hao, Xinyu
Zhang, Guangdong
Deng, Tong
Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method
title Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method
title_full Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method
title_fullStr Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method
title_full_unstemmed Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method
title_short Improved Optimization of a Coextrusion Die with a Complex Geometry Using the Coupling Inverse Design Method
title_sort improved optimization of a coextrusion die with a complex geometry using the coupling inverse design method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10422200/
https://www.ncbi.nlm.nih.gov/pubmed/37571203
http://dx.doi.org/10.3390/polym15153310
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