Invention Grant
- Patent Title: Micro-concave portion machining method
- Patent Title (中): 微凹部加工方法
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Application No.: US11764951Application Date: 2007-06-19
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Publication No.: US07862404B2Publication Date: 2011-01-04
- Inventor: Kazuhito Takashima , Minoru Ota , Yoshitaka Uehara
- Applicant: Kazuhito Takashima , Minoru Ota , Yoshitaka Uehara
- Applicant Address: JP Yokohama
- Assignee: Nissan Motor Co., Ltd.
- Current Assignee: Nissan Motor Co., Ltd.
- Current Assignee Address: JP Yokohama
- Agency: Global IP Counselors, LLP
- Priority: JP2006-174094 20060623; JP2007-107976 20070417
- Main IPC: B24B1/00
- IPC: B24B1/00 ; B21D53/84
Abstract:
A micro-concave portion machining method is provided for forming micro-concave portions on an inner circumferential surface of a cylindrical bore form in a workpiece. The micro-concave portion machining method includes performing mirror surface machining and subsequent plastic working on the inner circumferential surface. The plastic working on the inner circumferential surface forms a plurality of recesses with each of the recesses including a micro-concave portion.
Public/Granted literature
- US20070298691A1 MICRO-CONCAVE PORTION MACHINING METHOD Public/Granted day:2007-12-27
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