Patent · US Expired

Cubic system boron nitride sintered body for a cutting tool

US5691260A · kind A · utility

15Cited by

13References

13Claims

0Family size

Assignees

DENKI KAGAKU KOGYO KABUSHIKI KAISHA · JP
MITSUBISHI MATERIALS CORPORATION · JP

Inventors

Masaharu Suzuki · Yokohama, JP
Teruyoshi Tanase · Tokyo, JP

Key dates

Filing date	Jul 30, 1996
Grant date	Nov 25, 1997
Priority date	—
Expiry date	Jul 30, 2016

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B35/5831
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A cubic system boron nitride sintered body for a cutting tool, which is a cubic system boron nitride sintered body having a purity of at least 99 wt % obtained by a direct conversion method, wherein the average size of primary crystal grains constructing the sintered body is at most 3.0 .mu.m.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.