Integrated simulation to predict warpage of injection molded parts

Injection molding analysis programs were developed for CAE (Computer Aided Engineering) in injection molding of thermoplastics. The programs consist of mold cooling, polymer filling‐packing‐cooling, fiber orientation, material properties and stress analyses. These programs are integrated to predict...

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Published in:Polymer engineering and science 1991-07, Vol.31 (14), p.1043-1050
Main Authors: Matsuoka, Takaaki, Takabatake, Jun-Ichi, Koiwai, Akihiko, Inoue, Yoshinori, Yamamoto, Satoru, Takahashi, Hideroh
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Injection moulding
Machinery and processing
Moulding
Plastics
Polymer industry, paints, wood
Technology of polymers
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cited_by cdi_FETCH-LOGICAL-c4498-7f75fc0ec2672cb322d967f0852559e17c6cb05d3eb3e4bdcea592a5aad79ecc3
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container_end_page 1050
container_issue 14
container_start_page 1043
container_title Polymer engineering and science
container_volume 31
creator Matsuoka, Takaaki
Takabatake, Jun-Ichi
Koiwai, Akihiko
Inoue, Yoshinori
Yamamoto, Satoru
Takahashi, Hideroh
description Injection molding analysis programs were developed for CAE (Computer Aided Engineering) in injection molding of thermoplastics. The programs consist of mold cooling, polymer filling‐packing‐cooling, fiber orientation, material properties and stress analyses. These programs are integrated to predict warpage of molded parts by using a common geometric model of three dimensional thinwalled molded parts. The warpage is predicted from temperature difference between upper and lower surfaces, temperature distribution, flow induced shear stress, shrinkage, and anisotropic mechanical properties caused by fiber orientation in the integrated simulation. The integrated simulation was applied to predicting warpage of a 4‐ribbed square plate of glass fiber reinforced polypropylene for examination of its validity. Predicted saddle‐like warpage was in good agreement with experimental one.
doi_str_mv 10.1002/pen.760311408
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1548-2634
language eng
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source Wiley-Blackwell Materials Science Backfiles
subjects Applied sciences
Exact sciences and technology
Injection moulding
Machinery and processing
Moulding
Plastics
Polymer industry, paints, wood
Technology of polymers
title Integrated simulation to predict warpage of injection molded parts
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