Patent · US Expired

Multiple grade cemented carbide inserts for metal working and method of making the same

US6685880B2 · kind B2 · utility

81Cited by

13References

7Claims

0Family size

Assignee

SANDVIK LTD · SE

Inventors

Lars-åke Engström · Knivsta, SE
Helene Ouchterlony · Tyresö, SE

Key dates

Filing date	Nov 9, 2001
Grant date	Feb 3, 2004
Priority date	—
Expiry date	Nov 9, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2005/001
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A cemented carbide insert of a first grade has at least one cutting point consisting of a cemented carbide of a second grade with different composition and/or grain size with an uneven transition zone between the first and second grade.

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