Method of manufacturing traction rollers for continuously variable transmissions and traction rollers resulting therefrom
US6282789A · kind A · utility
2Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4956
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a traction roller for a continuously variable transmission comprises placing a layer on a hollow cylindrical material having the volume substantially equal to the traction roller, performing axial pressure forging of the cylindrical material to obtain a work having the axial length substantially equal to that of the traction roller, performing axial die forging of the work to form side wall and outer peripheral surface of the traction roller, and grinding the work subjected to die forging to obtain a finished product of the traction roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.