Graphite matrix electrode with dispersed silicon particles
US5369240A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Feb 5, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H1/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrode for an electric discharge machining apparatus of the type in which a workpiece is machined by generating an electric discharge across a machining gap between a confronting electrode and the workpiece through a machining solution includes a matrix of a first conductive material and a plurality of crystalline semi-crystalline or amorphous particles of a second conductive material for promoting a plurality of discharge sites for the electric discharge, the particles being uniformly dispersed throughout void spaces of the matrix. The particle sizes and weight ratio of the first and second conductive materials are established so as to provide an optimal discharge site density in the exposed surfaces of the electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.