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Manufacturing microstructured tool inserts for the production of polymeric microfluidic devices

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Download Gilchrist_137_Archival_Repository.pdf18.56 MB
Author(s)
Zhang, Nan 
Srivastava, Amit P. 
Kirwan, Brendan 
Byrne, Richard 
Fang, Fengzhou 
Browne, David J. 
Gilchrist, M. D. 
Uri
http://hdl.handle.net/10197/7990
Date Issued
10 August 2015
Date Available
26T17:23:58Z September 2016
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.
Sponsorship
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 (...

  • Nickel insert

  • Stainless steel tooli...

DOI
10.1088/0960-1317/25/9/095005
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Owning collection
Mechanical & Materials Engineering Research Collection
Scopus© citations
28
Acquisition Date
Jan 30, 2023
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