Electrode for discharge surface treatment and manufacturing method therefor and discharge surface treatment method and device
US6602561B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jun 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49194
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A discharge surface treatment method with which discharge is caused to occur between an electrode and a workpiece to generate energy to form a coating on a surface of the workpiece, and method therefore. An electrode is made by combining a hard material, such as WC, and a soft material, such as Co. The hard and soft materials are mixed and compressed into a green compact. The green compact is baked in a vacuum furnace at a temperature which is below the sintering temperature but high enough to melt the soft material. The melted soft material fills the gaps between the particles of the hard material, resulting in an electrode having a texture similar to chalk called incomplete-sintering. The electrode is then used in discharge surface treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.