Micro Machining of Metal Injection Mould with Micro Channel Features of Tens Micro Meters for Polymer Microfluidic Devices Manufacturing

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Abstract:

There are increasing demands for polymer based microfluidic devices as polymer devices can be mass produced using the injection molding process for disposable analytical applications. However, fabrication of precision injection molds with micro features down to tens of micro meters is a challenging task. The most efficient manufacturing method for this type of high precision micro mold is the tool-based micro machining. In this paper, studies have been conducted to develop metal injection mould manufacturing technologies for polymer microfluidic device fabrication. An injection mould with a micro feature of 29m wall thickness, 20m height and 9.8mm length has been successfully achieved on brass with very precise dimensional accuracy and surface quality for molding process of polymer microfluidic devices. Polymer microfluidic chips with micro channels of 30m width have been successfully produced using the machined metal injection mould.

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Key Engineering Materials (Volumes 447-448)

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456-460

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September 2010

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[1] H. Andersson and A. van den Berg, Sensors and Actuators B: Chemical, Vol. 92 (2003), p.315.

Google Scholar

[2] F.Z. Fang, K. Liu, T.R. Kurfess and G.C. Lim, in: MEMS/�EMS Handbook: Techniques and Applications, edited by C.T. Leondes, Kluwer Academic Publishers (2005).

Google Scholar

[3] K. Liu, H. Wu, S.T. Ng and A.T.B. Thoe, The 7th International Conference of the Europe Society of Precision Engineering and �anotechnology, Bremen, Germany (2007), p.281.

Google Scholar

[4] H. Weule, V. Hüntrup and H. Tritschler, CIRP Annals, Vol. 51 (2001), p.61.

Google Scholar

[5] K. Liu, D.W. Zuo, X.P. Li and M. Rahman, J. Vacu. Sci. Tech. B, Vol. 27 (2009), p.1361.

Google Scholar

[6] R. C. Hibbeler: Engineering Mechanics Statics, Pearson, New York (2007).

Google Scholar