Cryogenic machining of PDMS fluidic channel using shrinkage compensation and surface roughness control

Kyeongeun Song, Myeong Gu Gang, Martin B.G. Jun, Byung-Kwon Min

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Polydimethylsiloxane (PDMS) is widely used in the fabrication of fluidic chips. Recently, a direct mechanical micromilling process using cryogenic cooling was considered to cut PDMS in order to reduce development time and prototyping costs. In this paper, the characteristics of cryogenic machining of PDMS were experimentally studied. The machined surface was analyzed with a variety of machining parameters, such as spindle speed and feed per tooth, and their effects on cutting temperature were examined. To improve geometric accuracy, a tool path compensation method that takes into account the shrinkage of PDMS at cryogenic temperatures was developed. Based on the preliminary results, the fabrication of a PDMS fluidic chip demonstrated that fluidic flow can be controlled by differences in the flow friction.

Original languageEnglish
Pages (from-to)1711-1717
Number of pages7
JournalInternational Journal of Precision Engineering and Manufacturing
Volume18
Issue number12
DOIs
Publication statusPublished - 2017 Dec 1

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Fluidics
Polydimethylsiloxane
Cryogenics
Machining
Surface roughness
Fabrication
Compensation and Redress
Friction
Cooling
Temperature
Costs

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "Polydimethylsiloxane (PDMS) is widely used in the fabrication of fluidic chips. Recently, a direct mechanical micromilling process using cryogenic cooling was considered to cut PDMS in order to reduce development time and prototyping costs. In this paper, the characteristics of cryogenic machining of PDMS were experimentally studied. The machined surface was analyzed with a variety of machining parameters, such as spindle speed and feed per tooth, and their effects on cutting temperature were examined. To improve geometric accuracy, a tool path compensation method that takes into account the shrinkage of PDMS at cryogenic temperatures was developed. Based on the preliminary results, the fabrication of a PDMS fluidic chip demonstrated that fluidic flow can be controlled by differences in the flow friction.",
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Cryogenic machining of PDMS fluidic channel using shrinkage compensation and surface roughness control. / Song, Kyeongeun; Gang, Myeong Gu; Jun, Martin B.G.; Min, Byung-Kwon.

In: International Journal of Precision Engineering and Manufacturing, Vol. 18, No. 12, 01.12.2017, p. 1711-1717.

Research output: Contribution to journalArticle

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