发明授权
- 专利标题: Micro drill and method of fabricating the same
- 专利标题(中): 微型钻头及其制造方法
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申请号: US13003293申请日: 2009-06-23
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公开(公告)号: US08834077B2公开(公告)日: 2014-09-16
- 发明人: Tae Sik Yoon , Soon Jin Cho , Seung Hyun Cho , Jae Joon Lee
- 申请人: Tae Sik Yoon , Soon Jin Cho , Seung Hyun Cho , Jae Joon Lee
- 申请人地址: KR Seongnam-Si, Gyeonggi-Do
- 专利权人: Bestner Inc.
- 当前专利权人: Bestner Inc.
- 当前专利权人地址: KR Seongnam-Si, Gyeonggi-Do
- 代理机构: Knobbe Martens Olson & Bear LLP
- 优先权: KR10-2008-0065980 20080708
- 国际申请: PCT/KR2009/003353 WO 20090623
- 国际公布: WO2010/005193 WO 20100114
- 主分类号: B23B51/02
- IPC分类号: B23B51/02 ; B23P15/32 ; C22C38/08 ; B22F7/06 ; B22F5/00
摘要:
A method of fabricating a micro drill, which includes a drill part for machining a hole and a shank part fixed to a motor, the drill part and the shank part being made of different materials. The method includes the steps of forming a drill part-forming powder compact having a recess in one end thereof, and forming a shank part-forming powder compact having a protrusion, the protrusion intended to be fitted into the recess of the drill part-forming powder compact, forming an assembly of the drill part-forming powder compact and the shank part-forming powder compact, with the protrusion fitted into the recess, and simultaneously sintering the assembly of the drill part-forming powder compact and the shank part-forming powder compact.
公开/授权文献
- US20110182684A1 MICRO DRILL AND METHOD OF FABRICATING THE SAME 公开/授权日:2011-07-28
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