Patent · US Active

Turning insert for metal cutting

US12240044B2 · kind B2 · utility

0Cited by

6References

14Claims

0Family size

Assignee

AB Sandvik Coromant · SE

Inventors

Adam JOHANSSON · Sandviken, SE
Ronnie Lof · Sandviken, SE
Joe Truong · Sandviken, SE

Key dates

Filing date	Feb 3, 2020
Grant date	Mar 4, 2025
Priority date	—
Expiry date	Sep 28, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2200/321
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A turning insert includes a top surface, a bottom surface, and side surfaces connecting the top and bottom surfaces. A reference plane is located parallel to and between the top surface and the bottom surface. A center axis intersects and extends perpendicular to the reference plane. Three nose portions are formed symmetrically around the center axis. Each nose portion has a first cutting edge, a second cutting edge and a convex nose cutting edge connecting the first and second cutting edges. As seen in in a top view, the first and second cutting edges on the same nose portion form a nose angle of 25-50°. The first cutting edge includes a first sub-portion and a second sub-portion. A distance from the nose cutting edge to the first sub-portion is shorter than a distance from the nose cutting edge to the second sub-portion.

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