Advanced micro-manufacturing of air foil bearing for micro motor drive using nanopowder metallurgy process

Author

Son, Soo-jung ; Young-Sang Cho ; Choi, Chul-jin

Author_Institution

Nano Functional Mater. Res. Group, Korea Inst. of Mater. Sci., Changwon, South Korea

fYear

2011

fDate

18-21 Oct. 2011

Firstpage

550

Lastpage

553

Abstract

This paper introduces micro-manufacturing of foil bearing with a diameter of 5mm and a length of 0.5mm for micro motor drive. Potential applications include micro gas turbines for mobile robots, turbo compressors/micro blower for micro fuel cells, micro bearings for pediatric heart, etc. In the field of a manufacturing technology for microparts, nanopowder metallurgy processing has received a great deal of attention in recent years. In this study, the nanopowder foil gas bearings were prepared by new method using powder metallurgy and LIGA process. The effect of the manufacturing condition on sintering properties of the nanopowder gas bearing was investigated. The density, shrinkage behavior and dimensional stabilities were analyzed.

Keywords

LIGA; density; foils; machine bearings; micromotors; motor drives; nanoparticles; powder metallurgy; shrinkage; sintering; LIGA process; advanced micromanufacturing; air foil bearing; microblower; microfuel cells; microgas turbines; micromotor drive; micropart manufacturing technology; mobile robots; nanopowder foil gas bearings; nanopowder gas bearing; nanopowder metallurgy process; sintering; size 0.5 mm; turbo compressors; Manufacturing; Materials; Motor drives; Powders; Stability analysis; Turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology Materials and Devices Conference (NMDC), 2011 IEEE

Conference_Location

Jeju

Print_ISBN

978-1-4577-2139-7

Type

conf

DOI

10.1109/NMDC.2011.6155291

Filename

6155291