Patent · US Expired

Cemented carbide with binder phase enriched surface zone and enhanced edge toughness behavior and process for making same

US5484468A · kind A · utility

117Cited by

5References

16Claims

0Family size

Assignee

SANDVIK AB · SE

Inventors

Ake Ostlund · Stuvsta-Snättringe, SE
Ulf Oskarsson · Tumba, SE
Per Gustafson · Huddinge, SE
Leif Akesson · Houjie, CN

Key dates

Filing date	Feb 7, 1994
Grant date	Jan 16, 1996
Priority date	—
Expiry date	Feb 7, 2014

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2999/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Cemented carbide inserts are available containing WC and cubic phases of carbide and/or carbonitride in a binder phase based on cobalt and/or nickel with a binder phase enriched surface zone. The binder phase content along a line essentially bisecting the rounded edge surfaces increases toward the edge and cubic phase is present. As a result, the edge toughness of the cutting inserts is improved.

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