Micro electro discharge machining method and apparatus
US6809285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Feb 15, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H9/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a micro electro discharge machining method and apparatus, the shapes of minute holes are transferred to a tool electrode through a plate electrode serving as an intermediate electrode, and a workpiece is machined using the tool electrode. As a result, the time for machining is reduced. During the electro discharge machining process, the relative distance between the tool electrode and the plate electrode or the workpiece is changed at a prescribed frequency and discharge pulse output is controlled in synchronization with the change in the relative distance between the tool electrode and the plate electrode or the workpiece, so that high precision machining is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.