Polycrystal diamond tool
US6302225A · kind A · utility
84Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/1904
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A polycrystal diamond tool is provided whose heat resistance, strength and anti-adhesion property are improved by modifying the porosity of a diamond sintered compact and which comprises a diamond sintered compact, sintered under ultra-high pressure and high temperature, brazed onto a tool substrate, in which the cutting edge vicinity part consists of 85 to 99 volume % of the diamond sintered compact material consisting of diamond grains bonded with each other and the balance of pores, and the other part than the cutting edge vicinity part consists of diamond grains and the balance of a brazing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.