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Simulation of micro-injection molding

Ali, Mohammad Yeakub and Hung, N. P. and Yuan, S. (2000) Simulation of micro-injection molding. In: International Conference on Precision Engineering (ICoPE) 2000, 21-23 March 2000, Singapore.

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Two challenges in micro-injection molding process were the modification of conventional injection molding machine and simulation of the molding process. This paper simulates the micro-injection molding process using a conventional software. Successful simulation was performed for the micro-injection molding of polycarbonate micro-components with sub-millimeter dimensions. The micro-cavities, keeping along with a macro-cavity, were filled completely under non-variothermal process conditions. The percentage weight of the melt flow and average flow length were found proportional to the filling time. A sudden drop of melt temperature and a high concentration of shear stress were observed at the entrances of all micro-cavities. The melt flow velocity inside the micro-cavity was much lower than any other places of the cavity. Air traps were identified in each of the micro-cavities.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 4751/27303
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Prof. Ir. Dr. Mohammad Yeakub Ali
Date Deposited: 03 Sep 2013 14:45
Last Modified: 20 Aug 2015 16:05
URI: http://irep.iium.edu.my/id/eprint/27303

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