Cutting insert

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/02 (2006.01)

Patent

CA 2697677

A cutting insert of the present invention has a body, auxiliary cutting edges of a convex curve shape and main cutting edges. The body has a top surface, a bottom surface, side surfaces connecting the top and bottom surfaces, and corner surfaces connecting the adjacent side surfaces. The auxiliary cutting edges are formed at intersections between the top and bottom surfaces and the side surfaces. The main cutting edges are formed at intersections between the top and bottom surfaces and the corner surfaces. The main cutting edge in the top surface extends from an end of an adjacent auxiliary cutting edge to its center in a direction toward the bottom surface and from the center to an end of another adjacent auxiliary cutting edge in a direction away from the bottom surface.

L'invention concerne un insert de coupe comportant un corps, des arêtes de coupe auxiliaires d'une forme incurvée convexe et des arêtes de coupe principales. Le corps comporte une surface supérieure, une surface inférieure, des surfaces latérales reliant les surfaces supérieure et inférieure, et des surfaces de coin reliant les surfaces latérales adjacentes. Les arêtes de coupe auxiliaires sont formées à des intersections entre les surfaces supérieure et inférieure et les surfaces latérales. Les arêtes de coupe principales sont formées à des intersections entre les surfaces supérieure et inférieure et les surfaces de coin. L'arête de coupe principale dans la surface supérieure s'étend d'une extrémité d'une arête de coupe auxiliaire adjacente à son centre dans un sens vers la surface inférieure et du centre à une extrémité d'une autre arête de coupe auxiliaire adjacente dans un sens s'écartant de la surface inférieure.

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