Micromolding of three-dimensional components

Hung, W. N. P. and Ngothai, Y. and Yuan, S. and Lee, C. W. and Ali, Mohammad Yeakub (2001) Micromolding of three-dimensional components. In: Precision Engineering at the Beginning of a Millenium (ICPE), 18-20 July 2001, Yokohama, Japan.

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Abstract

This paper presented a new technique to fabricate 3D microcomponents. The simulation and molding of microgears of 70-1000μm diameters and 1:1 aspect ratio were completed. Micro-EDM was combined with focused ion beam sputtering to produce a microcavity for subsequent molding process. The simulation pinpointed locations of trapped gas, predicted filling time, stress distribution, and uniformity of a microgear. Subtle differences in simulation results were observed depending on the finite elements used. Limited success was found for predicting weld lines and surface finish. The molded microcomponents producing by this technique possessed features that were compatible with those fabricated by the LIGA technique, i.e., surface finish ~10 nm, accuracy < 1 μm, and aspect ratio >10.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	4751/28906
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:	05 Jun 2013 11:25
Last Modified:	25 Jun 2013 13:23
URI:	http://irep.iium.edu.my/id/eprint/28906

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