Manufacturing microstructured tool inserts for the production of polymeric microfluidic devices

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Title: Manufacturing microstructured tool inserts for the production of polymeric microfluidic devices
Authors: Zhang, Nan
Srivastava, Amit P.
Kirwan, Brendan
Byrne, Richard
Fang, Fengzhou
Browne, David J.
Gilchrist, M. D.
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Date: 10-Aug-2015
Online since: 2016-09-26T17:23:58Z
Abstract: Tooling is critical in defining multi-scale patterns for mass production of polymeric microfluidic devices using the microinjection molding process. In the present work, fabrication of various microstructured tool inserts using stainless steel, nickel and bulk metallic glasses (BMGs) is discussed based on die-sinking EDM (electrical discharge machining), electroforming, focused ion beam milling and thermoplastic forming processes. Tool performance is evaluated in terms of surface roughness, hardness and tool life. Compared to stainless steel, nickel and BMGs are capable of integrating length scales from 100 to 10−8 m and are good candidates for producing polymeric microfluidics. Selection of tool materials and manufacturing technologies should consider the end-user requirements of actual applications.
Funding Details: Enterprise Ireland
European Commission - European Regional Development Fund
Type of material: Journal Article
Publisher: IOP Publishing
Journal: Journal of Micromechanics and Microengineering
Volume: 25
Issue: 99
Copyright (published version): 2015 IOP Publishing Ltd
Keywords: Bulk metallic glass (BMG)Nickel insertStainless steel tooling
DOI: 10.1088/0960-1317/25/9/095005
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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