Electropolishing parametric optimization of surface quality for the fabrication of a titanium microchannel using the taguchi method

Muslim Mahardika, Martin Andre Setyawan, Tutik Sriani, Norihisa Miki, Gunawan Setia Prihandana

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Titanium is widely used in biomedical components. As a promising advanced manufacturing process, electropolishing (EP) has advantages in polishing the machined surfaces of material that is hard and difficult to cut. This paper presents the fabrication of a titanium microchannel using the EP process. The Taguchi method was adopted to determine the optimal process parameters by which to obtain high surface quality using an L9 orthogonal array. The Pareto analysis of variance was utilized to analyze the three machining process parameters: applied voltage, concentration of ethanol in an electrolyte solution, and machining gap. In vitro experiments were conducted to investigate the fouling effect of blood on the microchannel. The result shows that an applied voltage of 20 V, an ethanol concentration of 20 vol.%, and a machining gap of 10 mm are the optimum machining parameters by which to enhance the surface quality of a titanium microchannel. Under the optimized machining parameters, the surface quality improved from 1.46 to 0.22 µm. Moreover, the adhesion of blood on the surface during the fouling experiment was significantly decreased, thus confirming the effectiveness of the proposed method.

Original languageEnglish
Article number325
JournalMachines
Volume9
Issue number12
DOIs
Publication statusPublished - 2021 Dec

Keywords

  • Electropolishing
  • Environmentally sound technologies
  • Microfluidic
  • Surface roughness
  • Taguchi
  • Titanium

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science (miscellaneous)
  • Mechanical Engineering
  • Control and Optimization
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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