Patent · US Expired

Method of making cemented carbide insert

US6699526B2 · kind B2 · utility

1Cited by

15References

10Claims

0Family size

Assignee

SANDVIK AB · SE

Inventors

Lisa Palmqvist · Umeå, SE
Mikael Lindholm · Kalmar, SE
Anders Lenander · Tyresö, SE
Björn Lungberg · Stuvsta-Snättringe, SE
Michael Thysell · Stockholm, SE

Key dates

Filing date	Oct 11, 2001
Grant date	Mar 2, 2004
Priority date	—
Expiry date	Oct 11, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of making a cutting insert includes forming a powder mixture containing WC, 2-10 wt % Co, 4-12 wt % cubic carbides, adding N in an amount of 0.9-1.7 % of the weight of the cubic carbides, mixing the powder with a pressing agent, milling and spray drying the mixture, compacting and sintering the material at 1300-1500 in an atmosphere of sintering gas 40-60 mbar, applying post-sintering treatment, and applying a coating by CVD or MTCVD.

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