Method and apparatus for impulse generator for electroerosive machining of workpieces
US5874703A · kind A · utility
5Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1995 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Aug 11, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for electroerosive machining (i.e. electric discharge machining) of workpieces is accomplished by supplying pulses of varying polarity to the gap between an electrode and a workpiece. Instead of a pause between pulses of the same polarity, the pulse generator inserts a pulse of reverse polarity whose duration is selected so that removal is at a maximum rate and wear of the electrode is still permissible. The reverse polarity pulses themselves cause machining of the workpiece. A fuzzy logic controller is used to optimize the pulse duration of successive pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.