Optimal Design and Experimental Verification of Ultrasonic Cutting Horn for Ceramic Composite Material von Hahn, Mibbeum, Cho, Yeungjung, Jang, Gunhee, Kim, Bumcho

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Effects of the friction coefficient of a barrel on the grinding performance of a planetary ball mill von Kim, Bumcho, Jang, Gunhee

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Robust hub design to prevent mechanical contact between the hub and sleeve of FDBs in an HDD due to disc clamping force von Kim, Bumcho, Jang, Gunhee

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Robust shaft design to compensate deformation in the hub press-fitting and disk clamping process of 2.5″ HDDs von Kim, Bumcho, Lee, Minho, Jang, Gunhee

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Dynamic behavior of air–oil interface in fluid dynamic bearings with a double sealing structure in a 2.5′′ hard disk drive due to non-operating axial shock von Kang, Chiho, Jung, Yeonha, Lee, Jihoon, Lee, Minho, Kim, Bumcho, Jang, Gunhee

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Prediction of the oil injection time of FDBs in an HDD spindle motor with a tied shaft by utilizing Kirchhoff’s pressure law von Lee, Minho, Lee, Jihoon, Kang, Chiho, Kim, Kyobong, Jang, Hokyung, Kim, Bumcho, Jang, Gunhee

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