FEM of Gas-Assisted Injection Molding Based on 3D Model

FEM of Gas-Assisted Injection Molding Based on 3D Model

The gas-assisted injection molding (GAIM) process is so complicated that increasing reliance has been placed on CAE (Computer Aided Engineering) as a tool for both mold designers and process engineers. In this paper, a 3D theoretical model and numerical scheme is presented to simulate the GAIM proce...

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Main Authors: Xinchao Wang, Tie Geng, Liqun Yan, Yonggang Guo, Lih-Sheng Turng
Format: Article
Language:English
Published: Hindawi-Wiley 2020-01-01
Series:Advances in Polymer Technology
Online Access:http://dx.doi.org/10.1155/2020/5818606
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spelling doaj-2bea5cdb5a0b42ef85057bf92fb7e0bc2020-11-25T02:04:42ZengHindawi-WileyAdvances in Polymer Technology0730-66791098-23292020-01-01202010.1155/2020/58186065818606FEM of Gas-Assisted Injection Molding Based on 3D ModelXinchao Wang0Tie Geng1Liqun Yan2Yonggang Guo3Lih-Sheng Turng4School of Mechatronic Engineering, and National Engineering Laboratory for Wheat & Corn Further Processing, HeNan University of Technology, Zhengzhou 450001, ChinaSchool of Mechatronic Engineering, and National Engineering Laboratory for Wheat & Corn Further Processing, HeNan University of Technology, Zhengzhou 450001, ChinaSchool of Mechatronic Engineering, and National Engineering Laboratory for Wheat & Corn Further Processing, HeNan University of Technology, Zhengzhou 450001, ChinaSchool of Mechatronic Engineering, and National Engineering Laboratory for Wheat & Corn Further Processing, HeNan University of Technology, Zhengzhou 450001, ChinaWisconsin Institute for Discovery, University of WI–Madison, Madison, WI, USAThe gas-assisted injection molding (GAIM) process is so complicated that increasing reliance has been placed on CAE (Computer Aided Engineering) as a tool for both mold designers and process engineers. In this paper, a 3D theoretical model and numerical scheme is presented to simulate the GAIM process, in which an equal-order velocity-pressure formulation method is employed to eliminate the pressure oscillation. In addition, the whole flow field including the gas and melt regions is calculated using a uniform momentum equation with the viscosity of gas raised to a certain order of magnitude, and a 3D control volume scheme is employed to track the flow front of the melt and gas. Finally, the validity of the model has been tested through case studies and experimental verification.http://dx.doi.org/10.1155/2020/5818606
collection DOAJ
language English
format Article
sources DOAJ
author Xinchao Wang
Tie Geng
Liqun Yan
Yonggang Guo
Lih-Sheng Turng
spellingShingle Xinchao Wang
Tie Geng
Liqun Yan
Yonggang Guo
Lih-Sheng Turng
FEM of Gas-Assisted Injection Molding Based on 3D Model
Advances in Polymer Technology
author_facet Xinchao Wang
Tie Geng
Liqun Yan
Yonggang Guo
Lih-Sheng Turng
author_sort Xinchao Wang
title FEM of Gas-Assisted Injection Molding Based on 3D Model
title_short FEM of Gas-Assisted Injection Molding Based on 3D Model
title_full FEM of Gas-Assisted Injection Molding Based on 3D Model
title_fullStr FEM of Gas-Assisted Injection Molding Based on 3D Model
title_full_unstemmed FEM of Gas-Assisted Injection Molding Based on 3D Model
title_sort fem of gas-assisted injection molding based on 3d model
publisher Hindawi-Wiley
series Advances in Polymer Technology
issn 0730-6679
1098-2329
publishDate 2020-01-01
description The gas-assisted injection molding (GAIM) process is so complicated that increasing reliance has been placed on CAE (Computer Aided Engineering) as a tool for both mold designers and process engineers. In this paper, a 3D theoretical model and numerical scheme is presented to simulate the GAIM process, in which an equal-order velocity-pressure formulation method is employed to eliminate the pressure oscillation. In addition, the whole flow field including the gas and melt regions is calculated using a uniform momentum equation with the viscosity of gas raised to a certain order of magnitude, and a 3D control volume scheme is employed to track the flow front of the melt and gas. Finally, the validity of the model has been tested through case studies and experimental verification.
url http://dx.doi.org/10.1155/2020/5818606
work_keys_str_mv AT xinchaowang femofgasassistedinjectionmoldingbasedon3dmodel
AT tiegeng femofgasassistedinjectionmoldingbasedon3dmodel
AT liqunyan femofgasassistedinjectionmoldingbasedon3dmodel
AT yonggangguo femofgasassistedinjectionmoldingbasedon3dmodel
AT lihshengturng femofgasassistedinjectionmoldingbasedon3dmodel
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