Cutting insert with elliptical cutting edge

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/20 (2006.01) B26D 1/12 (2006.01)

Patent

CA 2522842

A cutting Insert (30) comprises an elliptical cutting edge (38). The cutting insert (30) has a mounting hole (48) through which a retention screw (32) may pass, wherein the retention screw makes contact with the mounting hole in a seating plane that is perpendicular to the mounting hole. The cutting insert (30) is adapted for use in a cutting tool (10) comprising a tool body (12) having a pocket (26) partially defined by a floor that is parallel to a seating plane. The insert (30) can have a shape complimentary to a tool body (12) so as to cooperate with the tool body to form a continuous flute (37). According to one embodiment of the invention, the insert (30) has a flank edge inboard with respect to the tool body. An insert (30) according to another embodiment of the invention has a rake face (42) with a positive cutting geometry.

L'invention concerne un accessoire de coupe (30) comprenant un bord (38) coupant, elliptique. Ledit accessoire de coupe (30) présente un orifice de montage (48), à travers lequel une vis de retenue (32) peut passer, ladite vis de retenue étant en contact avec l'orifice de montage dans un plan d'emplacement, perpendiculaire à l'orifice de montage. Ledit accessoire de coupe (30) est conçu pour être utilisé dans un outil de coupe (10) comprend un corps de coupe (12), ce dernier comportant une poche (26), le fond de cette dernière étant parallèle au plan d'emplacement. Ledit accessoire (30) peut présenter une forme complémentaire à celle du corps d'outil (12), de façon à pouvoir coopérer avec le corps d'outil, ce qui permet la formation d'une goujure (37) continue. Dans un mode de réalisation de l'invention, ledit accessoire (30) présente un bord latéral situé à l'intérieur par rapport au corps d'outil. Dans un autre mode de réalisation, l'accessoire (30) comprend une face d'angle de pente (42) présentant une géométrie de coupe positive.

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