Method and apparatus for purging the eroding zone during electroerosive countersinking
US4822970A · kind A · utility
10Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Dec 17, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for purging the eroding zone during electroerosive countersinking, in which one or more short-stroke second raising lowering movements of a tool electrode relative to a workpiece are performed in the dielectric between two first long stroke raising/lowering movements and the frequency and/or height of stroke of the raising/lowering movements is automatically adapted to the conditions in the working gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.