The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Sep. 01, 1999
Magnus Aström, Sandviken, SE;
Lars-Ola Hansson, Sandviken, SE;
Sandvik Aktiebolag, Sandviken, SE;
Abstract
A cutting insert includes an upper chip surface, a bottom surface and side faces therebetween. At each of the end faces the cutting insert has axially protruding portions, each of which appears with a bevel face. Main cutting edges are provided in the intersection between the chip surface and the side surfaces. On each side surface is provided a clearance surface formed on a protruding portion which via a step clearance extends into a secondary helically twisted clearance surface, the chip angle of which increases with increasing cutting depth. The upper face includes along the main cutting edges a planar inclined surface with constant width that extends inwards and intersects with an upwardly inclined secondary chip breaking surface.