Patent · US Expired

CVD coated cutting tool insert

US7150772B2 · kind B2 · utility

2Cited by

7References

10Claims

0Family size

Assignee

Seco Tools AB · SE

Inventors

Andreas Larsson · Kalmar, SE
Anette Sulin · Fagersta, SE
Lena Petersson · Vattholma, SE
Sakari Ruppi · Fagersta, SE

Key dates

Filing date	May 18, 2004
Grant date	Dec 19, 2006
Priority date	—
Expiry date	Dec 13, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/30
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a coated cemented carbide insert (cutting tool), particularly useful for milling of stainless steels and super alloys but also milling of steels in toughness demanding applications. The cutting tool insert is characterised by a cemented carbide body comprising WC, NbC and TaC, a W-alloyed Co binder phase, and a coating comprising an innermost layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with columnar grains and a layer of α-Al2O3.

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