Cutting insert

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/10 (2006.01) B23B 27/16 (2006.01) B23C 5/20 (2006.01)

Patent

CA 2727599

A cutting insert of the present invention has a top surface and a bottom surface having a parallelogram shape, and four side surfaces connecting the top and bottom surfaces. One or more primary cutting edges are formed at intersections between the top and bottom surfaces and two opposing side surfaces. Secondary cutting edges are formed at intersections between the top and bottom surfaces and two other opposing side surfaces. The primary cutting edge forms a first angle with respect to a median plane parallel to the top and bottom surfaces. The secondary cutting edge forms a second angle with respect to the median plane. The top and bottom surfaces have a mounting surface and a rack surface, wherein the rack surface extends inwardly from the cutting edge toward the median plane. The top and bottom surfaces of the cutting insert have mirror symmetry with respect to the median plane.

Une plaquette de coupe de la présente invention présente une surface supérieure et une surface inférieure ayant une forme de parallélogramme, et quatre surfaces latérales reliant la surface supérieure et la surface inférieure. Un ou plusieurs bords de coupe primaires sont formés aux intersections entre la surface supérieure et la surface inférieure et deux surfaces latérales opposées. Des bords de coupe secondaires sont formés à des intersections entre la surface supérieure et la surface inférieure et deux autres surfaces latérales opposées. Le bord de coupe primaire forme un premier angle relativement à un plan médian parallèle aux surfaces supérieure et inférieure. Le bord de coupe secondaire forme un second angle relativement au plan médian. Les surfaces supérieure et inférieure ont une surface de montage et une surface de bâti, la surface de bâti sétendant vers lintérieur depuis le bord de coupe vers le plan médian. Les surfaces supérieure et inférieure de la plaquette de coupe ont une symétrie en miroir relativement au plan médian.

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