Title :
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
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;
Conference_Titel :
Nanotechnology Materials and Devices Conference (NMDC), 2011 IEEE
Conference_Location :
Jeju
Print_ISBN :
978-1-4577-2139-7
DOI :
10.1109/NMDC.2011.6155291
