EDM Of a roll using segmented electrode short-circuited in the rough machine step
US4471199A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H1/028
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is disclosed a method for electrical discharge machining of a workpiece in the form of a roll by application of an electrical voltage across said workpiece and an electrode or electrodes mounted opposite to each other with a predetermined gap therebetween, and more particularly such method wherein each such electrode is formed by plural electrode segments separated from one another by insulators, and the electrical discharge operation is performed with said electrode segments in each electrode short-circuited to one another in the rough machining step and with said electrode segments insulated from one another in the finish machining step for reducing the working time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.