Hard sintered compact for tools
US5395700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1992 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Jun 25, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12174
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In this invention, a cutting tool comprises two layers of hard sintered compact of cBN. The first sintered compact layer comprises about 75-98% by volume of cBN and a first binder material. The first binder material comprises from about 1 to out 40% by weight of Al. The second sintered compact layer comprises from about 40 to about 65% by volume of cBN and a second binder material. The second binder material comprises about 2 to about 30% by weight of Al. The first sintered compact layer is bonded to the second sintered compact layer. This composite material is bonded directly or indirectly to a tool holder to form a cutting tool. The first sintered compact layer constitutes a rake face of the cutting tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.