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- W1968862470 abstract "This research explores the micro-forming process of spiral groove pattern on Fluid Dynamic Bearing(FDB), which is utilized in precision driving part of the hard disk drive(HDD), using micro desktop forming system. While EDM and ECM process has been widely used to engrave the precision pattern which generates dynamic pressure on FDBs, micro forming process is newly proposed in this study to increase the productivity and to reduce the product costs. At first, desktop forming system is designed for spiral groove pattern forming. FE simulations are followed in order to evaluate the feasibility of micro-forming. The simulation results show that forming loads of 1,500Kgf is required to fabricate micro patterns with the depth of 15 μm. Finally the formability test is carried out with various forming loads. Deformed shapes and forming loads obtained from the test are compared with those from the analysis. The results fully demonstrate that micro pattern forming techniques are available to fabricate micro spiral groove patterns in FDB." @default.
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- W1968862470 date "2012-06-01" @default.
- W1968862470 modified "2023-09-26" @default.
- W1968862470 title "Micro Pattern Forming of Spiral Grooves in a Fluid Dynamic Bearing Using Desktop Forming System" @default.
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- W1968862470 doi "https://doi.org/10.4028/www.scientific.net/amr.538-541.1203" @default.
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