Micro-concave portion machining method
US7862404B2 · kind B2 · utility
10Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2240/44
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.