Accurate production of relieved shapes by electrical erosion
US4250371A · kind A · utility
14Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Jan 22, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for accurately producing relieved cutting tools and other relieved shapes by electrical erosion, whereby the workpiece is maintained in a horizontal position and a wire electrode is tilted at the desired relief angle from vertical after which they are moved relative to each other in a manner such that the spacing between them in a horizontal plane is compensated for the elliptical cross-section of the working gap in the horizontal plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.