Method for forming surface layer by electric discharge process
US4948625A · kind A · utility
5Cited by
2References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 27, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Nov 27, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C26/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for forming a surface layer on a base material to be processed by electric discharge process, said method being characterized in that the electric discharge process is conducted in liquid or liquefied gas by use of a metalloid or a metal as an electrode for electric discharge process to thereby form on the surface of said base material a layer having an amorphous alloy structure or a very fine crystal structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.