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Groove Shape Optimization of Thrust Air Bearing for Small Size Spindle Considering the Processing Errors

[+] Author Affiliations
Masayuki Ochiai, Naoya Kato, Hiromu Hashimoto

Tokai University, Hiratsuka, Japan

Paper No. ISPS-MIPE2018-8549, pp. V001T02A002; 3 pages
doi:10.1115/ISPS-MIPE2018-8549
From:
  • ASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment
  • ASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment
  • San Francisco, California, USA, August 29–30, 2018
  • Conference Sponsors: Information Storage and Processing Systems Division
  • ISBN: 978-0-7918-5193-7
  • Copyright © 2018 by ASME

abstract

In this research, we aim to examine the usefulness of the newly developed spindle motor proposed by Ochiai. Since machining error due to tool wear etc. used for microfabrication can be ignored, laser processing was used as a processing method. Thrust bearing grooves were generated by laser processing, and variation in groove depth was observed. Finally, the optimum shape of the thrust bearing groove was obtained by robust optimization using the probability distribution that can be approximated from the obtained machining error.

Copyright © 2018 by ASME

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