Method of fabricating scroll members by coining and tools therefor
US4403494A · kind A · utility
24Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1981 |
| Grant date | Sep 13, 1983 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23P15/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for forming scroll members comprising an end plate having an involute wrap rigidly affixed thereto. The end plate and involute wrap are precision formed, e.g., by casting, either as an integral element or as two separate elements and then the scroll member is coined to the desired dimensional accuracy and finish. If a separate end plate and an involute wrap are provided for coining, then they are rigidly joined during coining, an embodiment which permits the use of two different materials and/or the attainment of two different surface characteristics for the involute wrap and the end plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.