Hybrid Fabrication of Stainless Steel Channels for Microfluidic Application

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This research develops a hybrid micromanufacturing technique by combining micromilling and electrochemical micropolishing to fabricate extremely smooth surface finish, high aspect ratio, and complex microchannel patterns. Milling with coated and uncoated ball-end micromills in minimum quantity lubrication is used to remove most materials to define a channel pattern. The milled channels are then electrochemically polished to required finish. A theoretical model accurately predicts surface finish in meso-scale milling, but not in micro-scale milling due to size effect. Electrochemical polishing using an acid-based electrolyte is applied to repeatedly produce stainless steel microchannels with average surface finish of 100 nm when measuring across grain boundaries and 10 nm within a single grain.

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Periodical:

Edited by:

Iskandar I. Yaacob, Mohammad Yeakub Ali, Iis Sopyan and Saleem Hashmi

Pages:

33-36

DOI:

10.4028/www.scientific.net/AMR.1115.33

Citation:

D. Berestovskyi and N.P. Hung, "Hybrid Fabrication of Stainless Steel Channels for Microfluidic Application", Advanced Materials Research, Vol. 1115, pp. 33-36, 2015

Online since:

July 2015

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$35.00

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