Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold

In plastic injection molding. the problems found in the mold design stage are the capability on plastic flow and unsymmetrical cavity on the injection molding. Different thickness. morphology and volume on cavities have causes the different flow characteristic and results in different injection tim...

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Main Author:	Abdulla Mahmoud, Ahmed
Format:	Thesis
Language:	English
Subjects:	Polystyrene Injection molding of plastics Injection molding Unsymmetrical cavity
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/2/Full%20text.pdf
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id	my-unimap-63411
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spelling	my-unimap-634112019-11-24T08:42:49Z Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold Abdulla Mahmoud, Ahmed Dr. Du Ngoc Uy Lan In plastic injection molding. the problems found in the mold design stage are the capability on plastic flow and unsymmetrical cavity on the injection molding. Different thickness. morphology and volume on cavities have causes the different flow characteristic and results in different injection times. This research uses Solid-Work and Cad-Mold as Computer Aided Engineering (CAE) technology for design analysis and construction on ul/symmetrical cavity injection molding. The material used in this study in order to find the effects of the capability on plastic flow is polystyrene (PS) . The variables used in this unsymmetrical cavity injection mold consist was melt temperature. Practical injection molding is carried by BOY injection molding 22M. The injection setting parameters are recorded and used for simulation. The injected PS samples are characterized on density and mechanical properties (tensile and flexural). Temperature setting at 2 J 0 lie. 11 6 cm3/s flow rate and maximum pressure oj 614 bar achieved the highest mechanical properties. For simulation, the rheology behavior of polystyrene is characterized from melt flow index and capillary rheometer. The obtained results by the rheology testing are viscosity. shear rate and temperature shift Jactor - carreau parameters. As for simulation. Jour sensors are setup at the gate and end on each cavity. While simulation results are analyzed by a Cadmold program. The correlation between practical and simulation are made. From there. a modified mold at a cavity gate is carried out in order to get better flow and better injection products. The analysis and judgment is based on simulation results. The result shows that the modified mold achieve higher viscosity and lower shear rate for the dumbbell cavity which could better mechanical properties. Universiti Malaysia Perlis (UniMAP) 2011 Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/63411 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/1/Page%201-24.pdf ae413a852a4b4b1ad69483ae36f16174 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/2/Full%20text.pdf 68a93aaf7a65cd5bfae7ab42bec8f4ec http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 Polystyrene Injection molding of plastics Injection molding Unsymmetrical cavity School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Dr. Du Ngoc Uy Lan
topic	Polystyrene Injection molding of plastics Injection molding Unsymmetrical cavity
spellingShingle	Polystyrene Injection molding of plastics Injection molding Unsymmetrical cavity Abdulla Mahmoud, Ahmed Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold
description	In plastic injection molding. the problems found in the mold design stage are the capability on plastic flow and unsymmetrical cavity on the injection molding. Different thickness. morphology and volume on cavities have causes the different flow characteristic and results in different injection times. This research uses Solid-Work and Cad-Mold as Computer Aided Engineering (CAE) technology for design analysis and construction on ul/symmetrical cavity injection molding. The material used in this study in order to find the effects of the capability on plastic flow is polystyrene (PS) . The variables used in this unsymmetrical cavity injection mold consist was melt temperature. Practical injection molding is carried by BOY injection molding 22M. The injection setting parameters are recorded and used for simulation. The injected PS samples are characterized on density and mechanical properties (tensile and flexural). Temperature setting at 2 J 0 lie. 11 6 cm3/s flow rate and maximum pressure oj 614 bar achieved the highest mechanical properties. For simulation, the rheology behavior of polystyrene is characterized from melt flow index and capillary rheometer. The obtained results by the rheology testing are viscosity. shear rate and temperature shift Jactor - carreau parameters. As for simulation. Jour sensors are setup at the gate and end on each cavity. While simulation results are analyzed by a Cadmold program. The correlation between practical and simulation are made. From there. a modified mold at a cavity gate is carried out in order to get better flow and better injection products. The analysis and judgment is based on simulation results. The result shows that the modified mold achieve higher viscosity and lower shear rate for the dumbbell cavity which could better mechanical properties.
format	Thesis
author	Abdulla Mahmoud, Ahmed
author_facet	Abdulla Mahmoud, Ahmed
author_sort	Abdulla Mahmoud, Ahmed
title	Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold
title_short	Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold
title_full	Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold
title_fullStr	Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold
title_full_unstemmed	Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold
title_sort	simulation and correlation of the melt flow characteristic using polystyrene in usymmetrical cavity injection mold
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/63411/2/Full%20text.pdf
_version_	1747836855972265984

Simulation and correlation of the melt flow characteristic using Polystyrene in usymmetrical cavity injection mold

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