Method for electric discharge machining of a workpiece and corresponding apparatus
US6320151A · kind A · utility
6Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/065
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for wire cutting electric discharge machining to achieve precise surfaces with R.sub.a <0.1 microns. An intermittent operation is used with erosion pulses for primarily machining and erosion pulses for measuring any excursion of the wire electrode from the rest position. An evaluation unit is used to determine any excursions of the wire electrode from the rest position that might have been present during the preceding machining time, and a controller controls the machining process so that the wire electrode is practically straight during electroerosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.