Spark erosion electrode wire structure, method of manufacturing it, and application to spark erosion
US5928530A · kind A · utility
2Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Apr 11, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A metal or alloy spark erosion electrode wire in accordance with the invention has a surface conversion layer containing chemical compounds of said metal or alloy and at least one polyvalent transition element such as hexavalent chromium. This reduces the risk of the wire breaking in the spark erosion machine, and improves the surface state on the machined part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.