Method of manufacturing a wheel rim
US7523554B2 · kind B2 · utility
4Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2004 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Sep 10, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49995
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a wheel rim by bringing end faces of a workpiece into abutment against each other to form a hollow cylindrical body and forming a circumferential recess which is depressed from an outer circumferential wall of said hollow cylindrical body toward an inner circumferential wall thereof, including providing protrusions disposed near ends of a joined area of the hollow cylindrical body and extending in a joining direction, and then pressing the outer circumferential wall of the hollow cylindrical body to form the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.