Electric discharge machining method and apparatus
US5359169A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H1/022
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In an electric discharge machining method for electric discharge machining a workpiece by repeatedly applying a machining pulse voltage through a machining fluid across a machining gap formed between a machining electrode and the workpiece, the machining pulse voltage is applied across the machining gap in one polarity for a period of time corresponding to a first prescribed number of pulses and then the machining pulse voltage is applied across the machining gap in the other polarity for a period of time corresponding to a second prescribed number of pulses, whereafter the alternate application of the machining pulse voltage in the one polarity and the other polarity is repeated continuously. The method enables high-speed machining at low electrode consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.