Invention Grant
- Patent Title: Method of manufacturing fluid bearing apparatus and spindle motor including press working a cylindrical inner surface provided with a plating layer
- Patent Title (中): 制造流体轴承装置和主轴电动机的方法包括压制加工具有镀层的圆柱形内表面
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Application No.: US14690583Application Date: 2015-04-20
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Publication No.: US09595290B2Publication Date: 2017-03-14
- Inventor: Yoichi Sekii , Asami Ito
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2014-224040 20141104
- Main IPC: G11B19/20
- IPC: G11B19/20 ; F16C17/10 ; H02K7/08

Abstract:
A method of manufacturing a fluid bearing apparatus includes plating a metallic base material including a cylindrical base material inner circumferential surface, and pressing by bringing a contact portion of a pressing member into contact with a plating layer on the base material inner circumferential surface in the plating step. At least a portion of the pressing member including the contact portion has a Young's modulus equal to or greater than a Young's modulus of the base material. In the pressing step a surface of the plating layer is smoothened without causing a plastic deformation of the base material by bringing the pressing member into contact with the plating layer.
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Information query
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