发明授权
- 专利标题： Baseplate for disk drive suspension and method for manufacturing baseplate
- 专利标题（中）： 磁盘驱动器悬架基板和制造基板的方法
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申请号： US12767018申请日： 2010-04-26
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公开(公告)号： US08339745B2公开(公告)日： 2012-12-25
- 发明人: Ryosuke Yabu , Masakazu Sugino
- 申请人： Ryosuke Yabu , Masakazu Sugino
- 申请人地址： JP Yokohama-shi JP Ogaki-shi
- 专利权人： NHK Spring Co., Ltd.,Ogaki Seiko Co., Ltd.
- 当前专利权人： NHK Spring Co., Ltd.,Ogaki Seiko Co., Ltd.
- 当前专利权人地址： JP Yokohama-shi JP Ogaki-shi
- 代理机构： Holtz, Holtz, Goodman & Chick, PC
- 优先权： JP2009-113619 20090508
- 主分类号： G11B21/16
- IPC分类号： G11B21/16 ; C21D8/00
摘要：
A cylindrical boss portion is press-formed on a baseplate of a disk drive suspension. The boss portion is penetrated by a ball insertion hole relative to the thickness of the baseplate. The baseplate is formed of stainless steel. A chemically-polished surface is formed on an inner circumferential wall of the ball insertion hole by chemically polishing the baseplate after heat-treating it. The boss portion is inserted into a mounting hole of an actuator arm. A ball having a diameter larger than the inside diameter of the ball insertion hole is passed through the ball insertion hole. As the diameter of the boss portion is enlarged by the ball, the boss portion is fixed to the actuator arm.
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