Patent · US Active

Cubic boron nitride compact

US7867438B2 · kind B2 · utility

8Cited by

6References

16Claims

0Family size

Inventors

Nedret Can · Boksburg, ZA
Stig Ake Andersin · Church Hanborough, GB
Robert Fries · Rosebank, ZA
Iain Patrick Goudemond · Sandton, ZA

Key dates

Filing date	Oct 28, 2005
Grant date	Jan 11, 2011
Priority date	—
Expiry date	Oct 5, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/252
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of manufacturing a powdered composition or starting material used in producing a CBN compact which comprises CBN, a secondary hard phase and a binder phase includes two steps of attrition milling. First, the attrition milling of the secondary hard phase and the binder phase. Second, adding CBN particles to the fine particle mixture of the first attrition milling and then attrition milling this mixture.

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