Method and apparatus to produce a GRM lapping plate with fixed diamond using electro-deposition techniques
US7410410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2005 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Nov 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/127
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system and method are described for manufacturing a lapping plate. Diamond particles are premixed with a metal matrix. The diamond particles are electro-deposited onto the surface of a lapping plate. The lapping plate may have a substrate of hard metal with a soft metal coating. The metal matrix and the lapping plate may be the same metal. The metal matrix may be tin, copper, nickel, or silver. The metal matrix may be an alloy of tin, copper, nickel, or silver. The diamond particles may be between 0.1 and 0.25 microns in size. Multiple uniform layers of the diamond particles and metal matrix may be stacked on the lapping plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.